The physicists have known sin; and this is a knowledge which they cannot lose.

I can't think that it would be terrible of me to say - and it is occasionally true - that I need physics more than friends.

In a free world, if it is to remain free, we must maintain, with our lives if need be, but surely by our lives, the opportunity for a man to learn anything

Things which stimulate my curiosity are pretty far removed from the practical and therefore from classification.

The physicists have known sin; and this is a knowledge which they cannot lose.

Now I am become death, the destroyer of worlds. (quoting the Bhagavad-Gita after witnessing the first Nuclear explosion.)

The open society, the unrestricted access to knowledge, the unplanned and uninhibited association of men for its furtherance-these are what may make a vast, complex, ever growing, ever changing, ever more specialized and expert technological world, nevertheless a world of human community.