Everything should be made as simple as possible ... But not simpler.

We shall require a substantially new manner of thinking if mankind is to survive.

The gift of fantasy has meant more to me than my talent for absorbing positive knowledge.

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

A man's value to the community depends primarily on how far his feelings, thoughts, and actions are directed towards promoting the good of his fellows.

The environment is everything that isn't me.