The optimist thinks this is the best of all possible worlds. The pessimist fears it is true.

I am become death, the destroyer of worlds.

The atomic bomb made the prospect of future war unendurable. It has led us up those last few steps to the mountain pass and beyond there is a different country.

In some sort of crude sense, which no vulgarity, no humor, no overstatement can quite extinguish, the physicists have known sin and this is a knowledge which they cannot lose.

In some sort of crude sense, which no vulgarity, no humor, no overstatement can quite extinguish, the physicists have known sin and this is a knowledge which they cannot lose.