Man owes his strength in the struggle for existence to the fact that he is a social animal.

I believe in intuitions and inspirations...I sometimes FEEL that I am right. I do not KNOW that I am.

Genius simply cannot be reduced to a set of rules for anyone to follow.

The most practical solution is a good theory.

A finely tempered nature longs to escape from the personal life into the world of objective perception and thought.

I have no special talent. I am only passionately curious. The important thing is to not stop questioning. Curiousity has its own reason for existing.

I love to travel, but hate to arrive.