As machines get to be more and more like men, men will come to be more like machines.

What a man knows is everywhere at war with what he wants.

A tragic writer does not have to believe in God, but he must believe in man.

Anxiety and distress, interrupted occasionally by pleasure, is the normal course of man's existence.

Civilizations die from philosophical calm, irony, and a sense of fair play quite as surely as they die of debauchery.

When, in the present world, men behave well, that is no doubt sometimes because they are creatures of habit as well as, sometimes, because they are reasonable.

Man is, perhaps, no more prone to war than he used to be and no more inclined to commit other evil deeds. But a given amount of ill will or folly will go further than it used to.