None of the modern machines, none of the modern paraphernalia. . . have any power except over the people who choose to use them.

The modern habit of saying "This is my opinion, but I may be wrong" is entirely irrational. If I say that it may be wrong, I say that is not my opinion. The modern habit of saying "Every man has a different philosophy; this is my philosophy and it suits me" – the habit of saying this is mere weak-mindedness. A cosmic philosophy is not constructed to fit a man; a cosmic philosophy is constructed to fit a cosmos. A man can no more possess a private religion than he can possess a private sun and moon.

If a rhinoceros were to enter this restaurant now, there is no denying he would have great power here. But I should be the first to rise and assure him that he had no authority whatever.

Teach to the young, men's enduring truths, and let the learned amuse themselves with their passing errors.

Nobody notices postmen, yet they have passions like other men.

I believe your own accent is inimitable, though I shall practice it in my bath.

It is the simple truth that man does differ from the brutes in kind and not in degree; and the proof of it is here; that it sounds like a truism to say that the most primitive man drew a picture of a monkey and that it sounds like a joke to say that the most intelligent monkey drew a picture of a man. Something of division and disproportion has appeared; and it is unique. Art is the signature of man.