That Plato's Republic should have been admired, on its political side, by decent people, is perhaps the most astonishing example of literary snobbery in all history.

One is always a little afraid of love, but above all, one is afraid of pain or causing pain.

In a democracy it is necessary that people should learn to endure having their sentiments outraged.

A man of Seville is shaved by the Barber of Seville if and only if the man does not shave himself. Does the barber shave himself?

Too little liberty brings stagnation, and too much brings chaos.

Dogma demands authority, rather than intelligent thought, as the source of opinion; it requires persecution of heretics and hostility to unbelievers; it asks of its disciples that they should inhibit natural kindliness in favor of systematic hatred.

Science, by itself cannot, supply us with an ethic.