“New York: A third-rate Babylon.”

“We are, in fact, a nation of evangelists; every third American devotes himself to improving and lifting up his fellow-citizens, usually by force; the messianic delusion is our national disease.”

“Monogamy, in brief, kills passion -- and passion is the most dangerous of all the surviving enemies to what we call civilization, which is based upon order, decorum, restraint, formality, industry, regimentation. The civilized man -- the ideal civilized man -- is simply one who never sacrifices the common security to his private passions. He reaches perfection when he even ceases to love passionately -- when he reduces the most profound of all his instinctive experiences from the level of an ecstasy to the level of a mere device for replenishing the armies and workshops of the world, keeping clothes in repair, reducing the infant death-rate, providing enough tenants for every landlord, and making it possible for the Polizei to know where every citizen is at any hour of the day or night. Monogamy accomplishes this, not by producing satiety, but by destroying appetite. It makes passion formal and uninspiring, and so gradually kills it.”

“School days, I believe, are the unhappiest in the whole span of human existence. They are full of dull, unintelligible tasks, new and unpleasant ordinances, brutal violations of common sense and common decency. It doesn't take a reasonably bright boy long to discover that most of what is rammed into him is nonsense, and that no one really cares very much whether he learns it or not.”

“The fact is that the average man's love of liberty is nine-tenths imaginary, exactly like his love of sense, justice and truth.”

“Genius: the ability to prolong one's childhood.”

“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.”