I don't try to imagine a personal God; it suffices to stand in awe at the structure of the world, insofar as it allows our inadequate senses to appreciate it.

Children don’t heed the life experiences of their parents, and nations ignore history. Bad lessons always have to be learned anew.

You might as well not be alive if you're not in awe of God.

We must recognize what in our accepted tradition is damaging to our fate and dignity-and shape our lives accordingly.

The unleashed power of the atom has changed everything except our thinking. Thus, we are drifting toward catastrophe beyond conception. We shall require a substantially new manner of thinking if mankind is to survive.

We will never be able to solve the problems of tomorrow with the thinking of today

I have just got a new theory of eternity.