[There is] a duty in refusing to cooperate in any undertaking that violates the Constitutional rights of the individual. This holds in particular for all inquisitions that are concerned with the private life and the political affiliations of the citizens.

The legs are the wheels of creativity.

To raise new questions, new possibilities, to regard old problems from a new angle, requires creative imagination and marks real advance in science.

In quitting this strange world he has once again preceded me by a little. That doesn't mean anything. For those of us who believe in physics, this separation between past, present, and future is only an illusion, however tenacious.

The Press, which is mostly controlled by vested interests, has an excessive influence on public opinion.

The problems that exist in this world can not be solved by the level of thinking that created them.

Man has an intense desire for assured knowledge.