When the solution is simple, God is answering.

Without deep reflection one knows from daily life that one exists for other people.

You ask me if I keep a notebook to record my great ideas. I've only ever had one.

You can never solve a problem on the level on which it was created.

You cannot simultaneously prevent and prepare for war.

You have to learn the rules of the game. And then you have to play better than anyone else.

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

To the Master's honor all must turn, each in its track, without a sound, forever tracing Newton's ground.

Too many of us look upon Americans as dollar chasers. This is a cruel libel, even if it is reiterated thoughtlessly by the Americans themselves.

True art is characterized by an irresistible urge in the creative artist.