What a deep faith in the rationality of the structure of the world and what a longing to understand even a small glimpse of the reason revealed in the world there must have been in Kepler and Newton to enable them to unravel the mechanism of the heavens in long years of lonely work!

Nothing causes more consternation in a group of hypocrits than one honest man.

The release of atomic energy has not created a new problem. It has merely made more urgent the necessity of solving an existing one.

It is true that my parents were worried because I began to speak fairly late, so that they even consulted a doctor. I can't say how old I was - but surely not less than three.

The Universe is a friendly place.

I have little patience with scientists who take a board of wood, look for its thinnest part, and drill a great number of holes where drilling is easy.

If [quantum theory] is correct, it signifies the end of physics as a science.