Does there, I wonder, exist a being who has read all, or approximately all, that the person of average culture is supposed to have read, and that not to have read is a social sin? If such a being does exist, surely he is an old, a very old man.

Your own mind is a sacred enclosure into which nothing harmful can enter except by your permission.

You can only acquire really useful general ideas by first acquiring particular ideas . . . You cannot make bricks without straw.

All wrong doing is done in the sincere belief that it is the best thing to do.

Always behave as if nothing had happened, no matter what has happened.