“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.”

“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.”

“Nevertheless, it is the Christian theory that it is only a regard for this Being -- partly a trembling fear and partly a kind of conciliation represented to be love -- that keeps the human race from roaring downhill to villainy and disaster. Nor are theologians daunted by the obvious fact that many open and even ribald skeptics are not going that way, but, on the contrary, show a considerably higher degree of virtue than the Christian average. Their answer ... is that the moral sense of every such blameless candidate for Hell 'is a kind of parasitic growth upon the otherworldliness of the society in which he lives.' ... Even men who should know better indulge in this confusion between the religious impulse and common decency. ... But this is surely going beyond the plain facts. A man may be truly religious without imagining God as good at all, and he may be good without believing that there is any moral order in the universe or even that God exists. Religion does not necessarily make men better citizens, whether of their neighborhoods or of the world.”

“When difficulties confront him he no longer blames them upon the inscrutable enmity of remote and ineffable powers; he blames them upon his own ignorance and incompetence. And when he sets out to remedy that ignorance and to remove that incompetence he does not look to any such powers for light and leading; he puts his whole trust in his own enterprise and ingenuity. Not infrequently he overestimates his capacities and comes to grief, but his failures, at worst, are much fewer than the failures of his fathers. Does pestilence, on occasion, still baffle his medicine? Then it is surely less often than the pestilences of old baffled sacrifice and prayer. Does war remain to shame him before the bees, and wasteful and witless government to make him blush when he contemplates the ants? Then war at its most furious is still less cruel than Hell, and the harshest statutes ever devised by man have more equity and benevolence in them than the irrational and appalling jurisprudence of the Christian God.Today every such man knows that the laws which prevail in the universe, whatever their origin in some remote and incomprehensible First Purpose, manifest themselves in complete impersonality, and that no representation to any superhuman Power, however imagined, can change their operation in the slightest. He knows that when they seem arbitrary and irrational it is not because omnipotent and inscrutable Presences are playing with them, as a child might play with building blocks; but because the human race is yet too ignorant to penetrate to their true workings. The whole history of progress, as the modern mind sees it, is a history of such penetrations. ... Each in its turn has narrowed the dominion and prerogative of the gods.”

“Any man who afflicts the human race with ideas must be prepared to see them misunderstood. ”

“Men become civilized, not in proportion to their willingness to believe, but in proportion to their readiness to doubt.”

“There are some people who read too much: the bibliobibuli. I know some who are constantly drunk on books, as other men are drunk on whiskey or religion. They wander through this most diverting and stimulating of worlds in a haze, seeing nothing and hearing nothing.”