We turned the switch, saw the flashes, watched for ten minutes, then switched everything off and went home. That night I knew the world was headed for sorrow.

You may assume infinite ignorance and unlimited intelligence.

Byrnes... was concerned about Russia's postwar behavior. Russian troops had moved into Hungary and Rumania, and Byrnes thought it would be very difficult to persuade Russia to withdraw her troops from these countries, that Russia might be more manageable if impressed by American military might, and that a demonstration of the bomb might impress Russia.

In science it is not enough to think of an important problem on which to work. It is also necessary to know the means which could be used to investigate the problem.

A scientist's aim in a discussion with his colleagues is not to persuade, but to clarify.

We turned the switch, saw the flashes, watched for ten minutes, then switched everything off and went home. That night I knew the world was headed for sorrow.

If one knows only what one is told, one does not know enough to be able to arrive at a well-balanced decision.