The satisfaction of physical needs is indeed the indispensable pre-condition of a satisfactory existence, but in itself it is not enough. In order to be content, men must also have the possibility of developing their intellectual and artistic powers to whatever extent accords with their personal characteristics and abilities.

You believe in a god that plays dice; I believe in law & order.

A large part of our attitude toward things is conditioned by opinions and emotions which we unconsciously absorb as children from our environment. In other words, it is tradition—besides inherited aptitudes and qualities—which makes us what we are. We but rarely reflect how relatively small as compared with the powerful influence of tradition is the influence of our conscious thought upon our conduct and convictions.

Incompetence is the true crisis.

Mysticism is in fact the only criticism people cannot level against my theory.

Although I tried to be universal in thought, I am European by instinct and inclination.

A brave man, whose only fault was being a woman.