There's a very simple reason for focusing on the nuclear issue. Many, many issues are of supreme importance in one way or another, but if we blow ourselves up with nuclear weapons, no other issue is really going to matter. Quite possibly there would be no other human beings left to be concerned about anything else.

I wish to propose for the reader's favourable consideration a doctrine which may, I fear, appear wildly paradoxical and subversive. The doctrine in question is this: that it is undesirable to believe a proposition when there is no ground whatever for supposing it true.

We used to root for the Indians against the cavalry, because we didn't think it was fair in the history books that when the cavalry won it was a great victory, and when the Indians won it was a massacre.

Peace will come With tranquility and splendor on the wheels of fire But will bring us no reward when her false idols fall.

I don’t know whether this world has a meaning that transcends it. But I know that I cannot know that meaning and that it is impossible for me just now to know it.

He never believed in fate or providence, or the future being made by someone in the sky. Instead, at every instant, a trillion trillion possible futures; the pickiness of pure chance and physical laws seemed like freedom from the scheming of a gloomy god.