The important thing is not to stop questioning. Curiosity has its own reason for existing. One cannot help but be in awe when he contemplates the mysteries of eternity, of life, of the marvelous structure of reality. It is enough if one tries merely to comprehend a little of this mystery every day. Never lose a holy curiosity.

I cannot imagine a God who rewards and punishes the objects of his creation and is but a reflection of human frailty.

One strength of the communist system of the East is that it has some of the character of a religion and inspires the emotions of a religion.

Compounding is the 8th wonder of the world.

We are part of the whole which we call the universe, but it is an optical delusion of our mind that we think we are separate. This separateness is like a prison for us. Our job is to widen the circle of our compassion so we feel connected with all people and situations.

I became more and more convinced that even nature could be understood as a relatively simple mathematical structure.

You cannot prevent and prepare for war at the same time.