A person reveals his character by nothing so clearly as the joke he resents.

The Greeks possessed a knowledge of human nature we seem hardly able to attain to without passing through the strengthening hibernation of a new barbarism.

Man can acquire accomplishments or he can become an animal, whichever he wants. God makes the animals, man makes himself.

He swallowed a lot of wisdom, but all of it seems to have gone down the wrong way.

Food probably has a very great influence on the condition of men. Wine exercises a more visible influence, food does it more slowly but perhaps just as surely. Who knows if a well-prepared soup was not responsible for the pneumatic pump or a poor one for a war?

Man is a masterpiece of creation if for no other reason than that, all the weight of evidence for determinism notwithstanding, he believes he has free will.

We cannot remember too often that when we observe nature, and especially the ordering of nature, it is always ourselves alone we are observing.