“Self-respect--the secure feeling that no one, as yet, is suspicious.”

“I am suspicious of all the things that the average people believes.”

“We must respect the other fellow's religion, but only in the sense and to the extent that we respect his theory that his wife is beautiful and his children smart.”

“I do not pretend, of course, that I have never done it; mere politeness forces one to it; there are women who sulk and grow bellicose unless one at least makes the motions of kissing them. But what I mean is that I have never found the act a tenth part as agreeable as poets, the authors of musical comedy librettos, and (on the contrary side) chaperones and the gendarmerie make it out. The physical sensation, far from being pleasant, is intensely uncomfortable—the suspension of respiration, indeed, quickly resolves itself into a feeling of suffocation—and the posture necessitated by the approximation of lips and lips is unfailingly a constrained and ungraceful one. Theoretically, a man kisses a woman perpendicularly, with their eyes, those "windows of the soul," synchronizing exactly. But actually, on account of the incompressibility of the nasal cartilages, he has to incline either his or her head to an angle of at least 60 degrees, and the result is that his right eye gazes insanely at the space between her eyebrows, while his left eye is fixed upon some vague spot behind her. An instantaneous photograph of such a maneuvre, taken at the moment of incidence, would probably turn the stomach of even the most romantic man, and force him, in sheer self-respect, to renounce kissing as he has renounced leap-frog and walking on stilts.”

“A man's women folk, whatever their outward show of respect for his merit and authority, always regard him secretly as an ass, and with something akin to pity.”

“One of the most irrational of all the conventions of modern society is the one to the effect that religious opinions should be respected. …[This] convention protects them, and so they proceed with their blather unwhipped and almost unmolested, to the great damage of common sense and common decency. that they should have this immunity is an outrage. There is nothing in religious ideas, as a class, to lift them above other ideas. On the contrary, they are always dubious and often quite silly. Nor is there any visible intellectual dignity in theologians. Few of them know anything that is worth knowing, and not many of them are even honest.”

“The value the world sets upon motives is often grossly unjust and inaccurate. Consider, for example, two of them: mere insatiable curiosity and the desire to do good. The latter is put high above the former, and yet it is the former that moves one of the most useful men the human race has yet produced: the scientific investigator. What actually urges him on is not some brummagem idea of Service, but a boundless, almost pathological thirst to penetrate the unknown, to uncover the secret, to find out what has not been found out before. His prototype is not the liberator releasing slaves, the good Samaritan lifting up the fallen, but a dog sniffing tremendously at an infinite series of rat-holes.”