Man's chief enemy is his own unruly nature and the dark forces put up within him.

Dividing the swing into its parts is like dissecting a cat. You'll have blood and guts and bones all over the place. But you won't have a cat.

His mother's favorite, he possessed the self-confidence that told him he would achieve something worth while in life, and the ambition to do so, though for long the direction this would take remained uncertain.

[Freud's] great strength, though sometimes also his weakness, was the quite extraordinary respect he had for the singular fact... When he got hold of a simple but significant fact he would feel, and know, that it was an example of something general or universal, and the idea of collecting statistics on the matter was quite alien to him.