95 Quotes On Healthy Skepticism

In an era overflowing with information, cultivating a habit of healthy skepticism has never been more vital. It's the guiding beacon that helps us navigate the vast seas of data, opinions, and claims that bombard us daily. Healthy skepticism encourages critical thinking, empowering us to question the validity of what we encounter and seek the truth beyond face value. This collection of 95 quotes celebrates the art of questioning and the wisdom in doubt, offering insights from thinkers, philosophers, and leaders who have recognized the importance of skepticism in fostering a deeper understanding of the world. Join us as we explore these thought-provoking reflections, each serving as a reminder of the power and necessity of healthy skepticism in our quest for knowledge and truth.

1. “Most institutions demand unqualified faith; but the institution of science makes skepticism a virtue.” - Robert K. Merton

2. “As every inquiry which regards religion is of the utmost importance, there are two questions in particular which challenge our attention, to wit, that concerning its foundation in reason, and that concerning it origin in human nature.” - David Hume

3. “Tell people there's an invisible man in the sky who created the universe, and the vast majority will believe you. Tell them the paint is wet, and they have to touch it to be sure.” - George Carlin

4. “My desire and wish is that the things I start with should be so obvious that you wonder why I spend my time stating them. This is what I aim at because the point of philosophy is to start with something so simple as not to seem worth stating, and to end with something so paradoxical that no one will believe it.” - Bertrand Russell

5. “Blind belief in authority is the greatest enemy of truth.” - Albert Einstein

6. “What can be asserted without evidence can also be dismissed without evidence.” - Christopher Hitchens

7. “I like the scientific spirit—the holding off, the being sure but not too sure, the willingness to surrender ideas when the evidence is against them: this is ultimately fine—it always keeps the way beyond open—always gives life, thought, affection, the whole man, a chance to try over again after a mistake—after a wrong guess.” - Walt Whitman

8. “If we could believe that he [Jesus] really countenanced the follies, the falsehoods, and the charlatanism which his biographers [Gospels] father on him, and admit the misconstructions, interpolations, and theorizations of the fathers of the early, and the fanatics of the latter ages, the conclusion would be irresistible by every sound mind that he was an impostor... We find in the writings of his biographers matter of two distinct descriptions. First, a groundwork of vulgar ignorance, of things impossible, of superstitions, fanaticisms and fabrications... That sect [Jews] had presented for the object of their worship, a being of terrific character, cruel, vindictive, capricious and unjust... Jesus had to walk on the perilous confines of reason and religion: and a step to right or left might place him within the gripe of the priests of the superstition, a blood thirsty race, as cruel and remorseless as the being whom they represented as the family God of Abraham, of Isaac and of Jacob, and the local God of Israel. They were constantly laying snares, too, to entangle him in the web of the law... That Jesus did not mean to impose himself on mankind as the son of God, physically speaking, I have been convinced by the writings of men more learned than myself in that lore.[Letter to William Short, 4 August, 1820]” - Thomas Jefferson

9. “...What I have denied and what my reason compels me to deny, is the existence of a Being throned above us as a god, directing our mundane affairs in detail, regarding us as individuals, punishing us, rewarding us as human judges might.When the churches learn to take this rational view of things, when they become true schools of ethics and stop teaching fables, they will be more effective than they are to-day... If they would turn all that ability to teaching this one thing – the fact that honesty is best, that selfishness and lies of any sort must surely fail to produce happiness – they would accomplish actual things. Religious faiths and creeds have greatly hampered our development. They have absorbed and wasted some fine intellects. That creeds are getting to be less and less important to the average mind with every passing year is a good sign, I think, although I do not wish to talk about what is commonly called theology.The criticisms which have been hurled at me have not worried me. A man cannot control his beliefs. If he is honest in his frank expression of them, that is all that can in justice be required of him. Professor Thomson and a thousand others do not in the least agree with me. His criticism of me, as I read it, charged that because I doubted the soul’s immortality, or ‘personality,’ as he called it, my mind must be abnormal, ‘pathological,’ in other, words, diseased... I try to say exactly what I honestly believe to be the truth, and more than that no man can do. I honestly believe that creedists have built up a mighty structure of inaccuracy, based, curiously, on those fundamental truths which I, with every honest man, must not alone admit but earnestly acclaim.I have been working on the same lines for many years. I have tried to go as far as possible toward the bottom of each subject I have studied. I have not reached my conclusions through study of traditions; I have reached them through the study of hard fact. I cannot see that unproved theories or sentiment should be permitted to have influence in the building of conviction upon matters so important. Science proves its theories or it rejects them. I have never seen the slightest scientific proof of the religious theories of heaven and hell, of future life for individuals, or of a personal God. I earnestly believe that I am right; I cannot help believing as I do... I cannot accept as final any theory which is not provable. The theories of the theologians cannot be proved. Proof, proof! That is what I always have been after; that is what my mind requires before it can accept a theory as fact. Some things are provable, some things disprovable, some things are doubtful. All the problems which perplex us, now, will, soon or late, be solved, and solved beyond a question through scientific investigation. The thing which most impresses me about theology is that it does not seem to be investigating. It seems to be asserting, merely, without actual study....Moral teaching is the thing we need most in this world, and many of these men could be great moral teachers if they would but give their whole time to it, and to scientific search for the rock-bottom truth, instead of wasting it upon expounding theories of theology which are not in the first place firmly based. What we need is search for fundamentals, not reiteration of traditions born in days when men knew even less than we do now.[Columbian Magazine interview]” - Thomas A. Edison

10. “I don’t believe in astrology; I’m a Sagittarius and we’re skeptical.” - Arthur C. Clarke

11. “I know of no society in human history that ever suffered because its people became too desirous of evidence in support of their core beliefs.” - Sam Harris

12. “I wanted to cast doubt on the step he was about to take, to help him see there are other ways to live, other ways to seek knowledge, love...even self-transformation. I wanted to convince him his dignity depended on maintaining a free, skeptical attitude towards doctrine. I wanted...to save him...Doubt, like faith, has to be learned. It is a skill. But the curious thing about skepticism is that its adherents, ancient and modern, have so often been proselytizers. In reading them, I've often wanted to ask: "Why do you care?" Their skepticism offers no good answer to that question.” - Mark Lilla

13. “Men are never convinced of your reasons, of your sincerity, of the seriousness of your sufferings, except by your death. So long as you are alive, your case is doubtful; you have a right only to their skepticism.” - Albert Camus

14. “It is also worth noting that one can obtain a Ph.D. in any branch of science for no other purpose than to make cynical use of scientific language in an effort to rationalize the glaring inadequacies of tbe Bible. A handful of Christians appear to have done this; some have even obtained their degrees from reputable universities. No doubt, others will follow in their footsteps. While such people are technically "scientists," they are not behaving like scientists. They simply are not engaged in an honest inquiry into the nature of the universe. And their proclamations about God and the failures of Darwinism do not in the least signify that there is a legitimate scientific controversy about evolution.” - Sam Harris

15. “If you are searching for sacred knowledge and not just a palliative for your fears, then you will train yourself to be a good skeptic.” - Ann Druyan

16. “The Christian religion is a very powerful and convincing mistake.” - Philip Pullman

17. “Moral certainty is always a sign of cultural inferiority. The more uncivilized the man, the surer he is that he knows precisely what is right and what is wrong. All human progress, even in morals, has been the work of men who have doubted the current moral values, not of men who have whooped them up and tried to enforce them. The truly civilized man is always skeptical and tolerant, in this field as in all others. His culture is based on "I am not too sure.” - H.L. Mencken

18. “One special advantage of the skeptical attitude of mind is that a man is never vexed to find that after all he has been in the wrong.” - William Osler

19. “The fear of God is not the beginning of wisdom. The fear of God is the death of wisdom. Skepticism and doubt lead to study and investigation, and investigation is the beginning of wisdom.” - Clarence Darrow

20. “[Sire,] je n'ai pas eu besoin de cette hypothèse."En répondant Napoléon qui lui demanda pourquoi sa théorie de l'univers ne indique pas Dieux.” - Pierre-Simon Laplace

21. “In our reasonings concerning matter of fact, there are all imaginable degrees of assurance, from the highest certainty to the lowest species of moral evidence. A wise man, therefore, proportions his belief to the evidence.” - David Hume

22. “You can get into a habit of thought in which you enjoy making fun of all those other people who don't see things as clearly as you do. We have to guard carefully against it.” - Carl Sagan

23. “The chief deficiency I see in the skeptical movement is its polarization: Us vs. Them — the sense that we have a monopoly on the truth; that those other people who believe in all these stupid doctrines are morons; that if you're sensible, you'll listen to us; and if not, to hell with you. This is nonconstructive. It does not get our message across. It condemns us to permanent minority status.” - Carl Sagan

24. “Some information is classified legitimately; as with military hardware, secrecy sometimes really is in the national interest. Further, military, political, and intelligence communities tend to value secrecy for its own sake. It's a way of silencing critics and evading responsibility - for incompetence or worse. It generates an elite, a band of brothers in whom the national confidence can be reliably vested, unlike the great mass of citizenry on whose behalf the information is presumably made secret in the first place. With a few exceptions, secrecy is deeply incompatible with democracy and with science.” - Carl Sagan

25. “People wrap themselves in their beliefs. And they do it in such a way that you can't set them free. Not even the truth will set them free.” - Michael Specter

26. “Tell a devout Christian that his wife is cheating on him, or that frozen yogurt can make a man invisible, and he is likely to require as much evidence as anyone else, and to be persuaded only to the extent that you give it. Tell him that the book he keeps by his bed was written by an invisible deity who will punish him with fire for eternity if he fails to accept its every incredible claim about the universe, and he seems to require no evidence what so ever.” - Sam Harris

27. “She believed in nothing. Only her scepticism kept her from being an atheist.” - Jean-Paul Sartre

28. “It would be better for us to have some doubts in an honest pursuit of truth, than it would be for us to be certain about something that was not true. ” - Daniel Wallace

29. “I have always strenuously supported the right of every man to his own opinion, however different that opinion might be to mine. He who denies to another this right, makes a slave of himself to his present opinion, because he precludes himself the right of changing it.” - Thomas Paine

30. “Religious moderation is the product of secular knowledge and scriptural ignorance.” - Sam Harris

31. “...Whilst on board the Beagle I was quite orthodox, and I remember being heartily laughed at by several of the officers... for quoting the Bible as an unanswerable authority on some point of morality... But I had gradually come by this time, i.e., 1836 to 1839, to see that the Old Testament from its manifestly false history of the world, with the Tower of Babel, the rainbow at sign, &c., &c., and from its attributing to God the feelings of a revengeful tyrant, was no more to be trusted than the sacred books of the Hindoos, or the beliefs of any barbarian....By further reflecting that the clearest evidence would be requisite to make any sane man believe in the miracles by which Christianity is supported, (and that the more we know of the fixed laws of nature the more incredible do miracles become), that the men at that time were ignorant and credulous to a degree almost uncomprehensible by us, that the Gospels cannot be proved to have been written simultaneously with the events, that they differ in many important details, far too important, as it seemed to me, to be admitted as the usual inaccuracies of eyewitnesses; by such reflections as these, which I give not as having the least novelty or value, but as they influenced me, I gradually came to disbelieve in Christianity as a divine revelation. The fact that many false religions have spread over large portions of the earth like wild-fire had some weight with me. Beautiful as is the morality of the New Testament, it can be hardly denied that its perfection depends in part on the interpretation which we now put on metaphors and allegories.But I was very unwilling to give up my belief... Thus disbelief crept over me at a very slow rate, but was at last complete. The rate was so slow that I felt no distress, and have never since doubted even for a single second that my conclusion was correct. I can indeed hardly see how anyone ought to wish Christianity to be true; for if so the plain language of the text seems to show that the men who do not believe, and this would include my Father, Brother and almost all of my friends, will be everlastingly punished. And this is a damnable doctrine.” - Charles Darwin

32. “The limit of man s knowledge in any subject possesses a high interest which is perhaps increased by its close neighbourhood to the realms of imagination.” - Charles Darwin

33. “All the tales of miracles, with which the Old and New Testament are filled, are fit only for impostors to preach and fools to believe.” - Thomas Paine

34. “It is my firm conviction that man has nothing to gain, emotionally or otherwise, by adhering to a falsehood, regardless of how comfortable or sacred that falsehood may appear. Anyone who claims, on the one hand, that he is concerned with human welfare, and who demands, on the other hand, that man must suspend or renounce the use of his reason, is contradicting himself. There can be no knowledge of what is good for man apart from knowledge of reality and human nature, and there is no manner in which this knowledge can be acquired except through reason. To advocate irrationality is to advocate that which is destructive to human life.” - George H. Smith

35. “It's natural to think that living things must be the handiwork of a designer. But it was also natural to think that the sun went around the earth. Overcoming naive impressions to figure out how things really work is one of humanity's highest callings.[Can You Believe in God and Evolution? Time Magazine, August 7, 2005]” - Steven Pinker

36. “I am satisfied, and sufficiently occupied with the things which are, without tormenting or troubling myself about those which may indeed be, but of which I have no evidence.” - Thomas Jefferson

37. “Reality provides us with facts so romantic that imagination itself could add nothing to them.” - Jules Verne

38. “Every aspect of Nature reveals a deep mystery and touches our sense of wonder and awe. Those afraid of the universe as it really is, those who pretend to nonexistent knowledge and envision a Cosmos centered on human beings will prefer the fleeting comforts of superstition. They avoid rather than confront the world. But those with the courage to explore the weave and structure of the Cosmos, even where it differs profoundly from their wishes and prejudices, will penetrate its deepest mysteries.” - Carl Sagan

39. “Is it more probable that nature should go out of her course or that a man should tell a lie? We have never seen, in our time, nature go out of her course. But we have good reason to believe that millions of lies have been told in the same time. It is therefore at least millions to one that the reporter of a miracle tells a lie. ” - Thomas Paine

40. “Give me the storm and tempest of thought and action, rather than the dead calm of ignorance and faith! Banish me from Eden when you will; but first let me eat of the fruit of the tree of knowledge!” - Robert G. Ingersoll

41. “No one, in the world's whole history, ever attempted to substantiate a truth by a miracle. Truth scorns the assistance of miracle. Nothing but falsehood ever attested itself by signs and wonders. No miracle ever was performed, and no sane man ever thought he had performed one, and until one is performed, there can be no evidence of the existence of any power superior to, and independent of nature.” - Robert G. Ingersoll

42. “In all ages the people have honored those who dishonored them. They have worshiped their destroyers; they have canonized the most gigantic liars, and buried the great thieves in marble and gold. Under the loftiest monuments sleeps the dust of murder.” - Robert G. Ingersoll

43. “Progress is born of doubt and inquiry. The Church never doubts, never inquires. To doubt is heresy, to inquire is to admit that you do not know—the Church does neither.” - Robert G. Ingersoll

44. “Liberty a word without which all other words are vain.” - Robert G. Ingersoll

45. “The real bible is not the work of inspired men, nor prophets, nor apostles, nor evangelists, nor of Christs. Every man who finds a fact, adds, as it were, a word to this great book. It is not attested by prophecy, by miracles or signs. It makes no appeal to faith, to ignorance, to credulity or fear. It has no punishment for unbelief, and no reward for hypocrisy. It appeals to man in the name of demonstration. It has nothing to conceal. It has no fear of being read, of being contradicted, of being investigated and understood. It does not pretend to be holy, or sacred; it simply claims to be true. It challenges the scrutiny of all, and implores every reader to verify every line for himself. It is incapable of being blasphemed. This book appeals to all the surroundings of man. Each thing that exists testifies of its perfection. The earth, with its forests and plains, its rocks and seas; with its every wave and cloud; with its every leaf and bud and flower, confirms its every word, and the solemn stars, shining in the infinite abysses, are the eternal witnesses of its truth.” - Robert G. Ingersoll

46. “Skepticism, not cleanliness, is next to godliness. Skepticism is the father of freedom. It is like the pry that holds open the door for truth to slip in.” - Gerry Spence

47. “Johnson is a radical skeptic, insisting, in the best Socratic tradition, that everything be put on the table for examination. By contrast, most skeptics opposed to him are selective skeptics, applying their skepticism to the things they dislike (notably religion) and refusing to apply their skepticism to the things they do like (notably Darwinism). On two occasions I’ve urged Michael Shermer, publisher of Skeptic Magazine, to put me on its editorial board as the resident skeptic of Darwinism. Though Shermer and I know each other and are quite friendly, he never got back to me about joining his editorial board.” - William A. Dembski

48. “...there being a god, that god must be worshiped. Worship means raising the god above the individual, and liturgies often make the point that the individual is less than nothing compared to the deity. If this be done, then, when the god is invoked, the individual has so little worth that he or she may be sacrificed for the needs of the god....And who speaks for the god? If all people do, then no one does, and there is no god. If the people accept a priesthood, or the equivalent, then those priests exercise whatever power that god's believers grant that god over them, and that elite may cause an individual to be worth less, to be exiled, or even to die or to be killed. Yet such powers do not come from a deity.In modern history and science, never has there been a verified occasion of a god appearing or demonstrating the powers ascribed throughout history to deities. Always, there is a prophet who speaks for the god. Why cannot the god speak? If a god is omnipotent, then the god can speak. If he cannot, then that god is not omnipotent. Often the prophets say that a god will only speak to the chosen, the worthy.Should a people accept a god who is either too powerless to speak, or too devious and skeptical to appear? Or a god who will only accept those who swallow a faith laid out by a prophet who merely claims that deity exists—without proof? Yet people have done so, and have granted enormous powers to those who speak for god.” - L.E. Modesitt Jr

49. “In order to seek truth, it is necessary once in the course of our life to doubt, as far as possible, of all things.” - René Descartes

50. “It's a most distressing affliction to have a sentimental heart and a skeptical mind.” - Naguib Mahfouz

51. “Believing everyone is dangerous, but believing nobody is more dangerous.” - Abraham Lincoln

52. “Does a man of sense run after every silly tale of hobgoblins or fairies, and canvass particularly the evidence? I never knew anyone, that examined and deliberated about nonsense who did not believe it before the end of his enquiries.” - David Hume

53. “Believers in psychic phenomena... appear to have won a decisive victory and virtually silenced opposition.... This victory is the result of careful experimentation and intelligent argumentation. Dozens of experimenters have obtained positive results in ESP experiments, and the mathematical procedures have been approved by leading statisticians.... Against all this evidence, almost the only defense remaining to the skeptical scientist is ignorance.” - George R. Price

54. “Why do we not accept ESP as a psychological fact? Rhine has offered enough evidence to have convinced us on almost any other issue... Personally, I do not accept ESP for a moment, because it does not make sense. My external criteria, both of physics and of physiology, say that ESP is not a fact despite the behavioral evidence that has been reported. I cannot see what other basis my colleagues have for rejecting it... Rhine may still turn out to be right, improbable as I think that is, and my own rejection of his view is - in the literal sense - prejudice.” - Donald Hebb

55. “People are not stupid. They believe things for reasons. The last way for skeptics to get the attention of bright, curious, intelligent people is to belittle or condescend or to show arrogance toward their beliefs.” - Carl Sagan

56. “Different authors have different points of view. You can't just say, 'I believe in the Bible.” - Bart Ehrman

57. “It seems all spirits need theatrics, eh? Even Christ himself requires incense and holy water. We're a skeptical people. We need convincing.” - Megan Chance

58. “Surely we cannot take an open question like the supernatural and shut it with a bang, turning the key of the madhouse on all the mystics of history. You cannot take the region of the unknown and calmly say that, though you know nothing about it, you know all the gates are locked. We do not know enough about the unknown to know that it is unknowable.” - G.K. Chesterton

59. “I think you'll find it's a bit more complicated than that.” - Ben Goldacre

60. “The justifications of men who kill should always be heard with skepticism, said the monster.” - Patrick Ness

61. “We all ought to understand we're on our own. Believing in Santa Claus doesn't do kids any harm for a few years but it isn't smart for them to continue waiting all their lives for him to come down the chimney with something wonderful. Santa Claus and God are cousins.” - Andy Rooney

62. “It Begins with skepticism. The history of human folly, and our own susceptibility to illusions and fallacies, tell us that men and women are fallible.” - Steven Pinker

63. “The law is too important to be left to the lawyers, to paraphrase Georges Clemenceau about war and generals. We laymen know too little about our Constitution and think too superficially about its influence on the qualities of American life. Civic duty requires more.” - David K. Shipler

64. “Atheism is the opium of the mathematicians. Atheism is the religion of Mathematics.” - Bill Gaede

65. “I am approached with the most opposite opinions and advice, and that by religious men, who are equally certain that they represent the Divine will. I am sure that either the one or the other is mistaken in that belief, and perhaps in some respects both. I hope it will not be irreverent for me to say that if it is probable that God would reveal his will to others, on a point so connected with my duty, it might be supposed he would reveal it directly to me; for, unless I am more deceived in myself than I often am, it is my earnest desire to know the will of Providence in this matter. And if I can learn what it is, I will do it! These are not, however, the days of miracles, and I suppose it will be granted that I am not to expect a direct revelation. I must study the plain, physical facts of the case, ascertain what is possible and learn what appears to be wise and right.” - Abraham Lincoln

66. “To point out nonepistemic motives in another’s view of the world, therefore, is always a criticism, as it serves to cast doubt upon a person’s connection to the world as it is.” - Sam Harris

67. “I don't believe in angels and I have trouble with the whole God thing. I don't want to say I don't believe in God but I don't think I do. But I believe in people who do.” - Billy Connolly

68. “Nothingever happened on this globe, for good, at which some people did not have their fill of laughter in the onset; and knowing that such as these would be blind anyway, he thought it quite as well that they should wrinkle up their eyes in grins, as have a malady in the less attractive forms.” - Charles Dickens

69. “I will not attack your doctrines nor your creeds if they accord liberty to me. If they hold thought to be dangerous - if they aver that doubt is a crime, then I attack them one and all, because they enslave the minds of men.I attack the monsters, the phantoms of imagination that have ruled the world. I attack slavery. I ask for room -- room for the human mind.” - Robert G. Ingersoll

70. “There was a time when skepticism was an act of rebellion. Since to a degree I both believe in evolution and have faith, I can only conclude that, as prophesied, to have faith will someday be an act of rebellion.” - Criss Jami

71. “Faeries and vampires were glittery now? Honestly.” - Kiersten White

72. “Dean, you've been to Hell, I started the Apocalypse, and we're supposed to be possessed by an archangel and the devil. Now you're being skeptical?” - Keith R. A. DeCandido

73. “In the specially Christian case we have to react against the heavy bias of fatigue. It is almost impossible to make the facts vivid, because the facts are familiar; and for fallen men it is often true that familiarity is fatigue. I am convinced that if we could tell the supernatural story of Christ word for word as of a Chinese hero, call him the Son of Heaven instead of the Son of God, and trace his rayed nimbus in the gold thread of Chinese embroideries or the gold lacquer of Chinese pottery, instead of in the gold leaf of our own old Catholic paintings, there would be a unanimous testimony to the spiritual purity of the story. We should hear nothing then of the injustice of substitution or the illogicality of atonement, of the superstitious exaggeration of the burden of sin or the impossible insolence of an invasion of the laws of nature. We should admire the chivalry of the Chinese conception of a god who fell from the sky to fight the dragons and save the wicked from being devoured by their own fault and folly. We should admire the subtlety of the Chinese view of life, which perceives that all human imperfection is in very truth a crying imperfection. We should admire the Chinese esoteric and superior wisdom, which said there are higher cosmic laws than the laws we know.” - G.K. Chesterton

74. “The opinions that are held with passion are always those for which no good ground exists; indeed the passion is the measure of the holders lack of rational conviction. Opinions in politics and religion are almost always held passionately.” - Bertrand Russell

75. “You must picture me alone in that room in Magdalen, night after night, feeling, whenever my mind lifted even for a second from my work, the steady, unrelenting approach of Him whom I so earnestly desired not to meet. That which I greatly feared had at last come upon me. In the Trinity Term of 1929 I gave in, and admitted that God was God, and knelt and prayed: perhaps, that night, the most dejected and reluctant convert in all England. I did not then see what is now the most shining and obvious thing; the Divine humility which will accept a convert even on such terms. The Prodigal Son at least walked home on his own feet. But who can duly adore that Love which will open the high gates to a prodigal who is brought in kicking, struggling, resentful, and darting his eyes in every direction for a chance of escape? The words “compelle intrare,” compel them to come in, have been so abused be wicked men that we shudder at them; but, properly understood, they plumb the depth of the Divine mercy. The hardness of God is kinder than the softness of men, and His compulsion is our liberation.” - C.S. Lewis

76. “Deities are invented by fallible and finite beings in the hope and desire to create immortal perfection; unfortunately, such deities only reflect their creators and inspire their followers to similar imperfections.” - L.E. Modesitt Jr

77. “The real reason why so few men believe in God is that they have ceased to believe that even a God can love them.” - Thomas Merton

78. “Scepticism is the first step towards truth.” - Denis Diderot

79. “I perceive that it is far more practical to begin at the beginning and discuss theories. I see that the men who killed each other about the orthodoxy of the Homoousion were far more sensible than the people who are quarrelling about the Education Act. For the Christian dogmatists were trying to establish a reign of holiness, and trying to get defined, first of all, what was really holy. But our modern educationists are trying to bring about a religious liberty without attempting to settle what is religion or what is liberty. If the old priests forced a statement on mankind, at least they previously took some trouble to make it lucid. It has been left for the modern mobs of Anglicans and Nonconformists to persecute for a doctrine without even stating it.” - G.K. Chesterton

80. “I suppose that Willie had his natural quota of ordinary suspicion and caginess, but those things tend to evaporate when what people tell you is what you want to hear.” - Robert Penn Warren

81. “Simply to acquiesce in skepticism can never suffice to overcome the restlessness of reason.” - Immanuel Kant

82. “Re-examine all that you have been told.” - Walt Whitman

83. “Racism is not merely a simplistic hatred. It is, more often, broad sympathy toward some and broader skepticism toward others.” - Ta-Nehisi Coates

84. “For God to prove himself on demand, physically, would be a grave disappointment, and the strongest Christians should be considerably grateful that he chooses not to do so. The skeptic endlessly demands proof, yet God refuses to insult the true intelligence of man, the '6th sense', the chief quality, the acumen which distinguishes man from the rest of creation, faith.” - Criss Jami

85. “In a post-Christian, skeptical age, love on display is the most convincing apologetic.” - J.D. Greear

86. “One of the biggest problems with the world today is that we have large groups of people who will accept whatever they hear on the grapevine, just because it suits their worldview—not because it is actually true or because they have evidence to support it. The really striking thing is that it would not take much effort to establish validity in most of these cases… but people prefer reassurance to research.” - Neil deGrasse Tyson

87. “...Today the lack of faith is an expression of profound confusion and despair. Once skepticism and rationalism were progressive forces for the development of thought; now they have become rationalizations for relativism and uncertainty.” - Erich Fromm

88. “[T]he downside of skepticism: it can easily turn into an arrogant position of a priori rejection of any new phenomenon or idea, a position that is as lacking in critical thinking as the one of the true believer, and that simply does not help either science or the public at large.” - Massimo Pigliucci

89. “It is assumed that the skeptic has no bias; whereas he has a very obvious bias in favour of skepticism.” - G.K. Chesterton

90. “The cold logic of mid-twentieth-century atheism has now given way to an era of renewed 'spirituality,' but it is an awakening more thrapeutic than pious, more attuned to self-expression than self-denial. It is now fashionable to talk about God, though it is still deeply unfashionable to believe in him.” - J. Mark Bertrand

91. “The doctrine of the sacredness of the soul sounds vaguely uplifting, but in fact is highly malignant. It discounts life on earth as just a temporary phase that people pass through, indeed, an infinitesimal fraction of their existence…the gradual replacement of lives for souls as the locus of moral value was helped along by the ascendency of skepticism and reason” - Steven Pinker

92. “Unbelief is as much of a choice as belief is. What makes it in many ways more appealing is that whereas to believe in something requires some measure of understanding and effort, not to believe doesn't require much of anything at all.” - Frederick Buechner

93. “A mode of thought does not become 'critical' simply by attributing that label to itself, but by virtue of its content.” - Alan Sokal

94. “A skeptic, I would ask for consistency first of all.” - Sylvia Plath

95. “Skepticism is thus a resting-place for human reason, where it can reflect upon its dogmatic wanderings and make survey of the region in which it finds itself, so that for the future it may be able to choose its path with more certainty. But it is no dwelling-place for permanent settlement. Such can be obtained only through perfect certainty in our knowledge, alike of the objects themselves and of the limits within which all our knowledge of objects is enclosed.” - Immanuel Kant