When I'm judging a theory, I ask myself whether, if I were God, I would have arranged the world in such a way.

The legs are the wheels of creativity.

The really valuable method of thought to arrive at a logically coherent system is intuition.

A table, a chair, a bowl of fruit and a violin; what else does a man need to be happy.

One lives one's life under constant tension, until it's time to go for good

Formerly, people thought that if matter disappeared from the universe, space and time would remain. Relativity declares that space and time would disappear with matter.

One cannot learn so well as by experiencing it oneself.