I would prefer to write about everything; what else is there? But one must be selective.

Of all bores, the worst is the sparkling bore.

Why this cult of wilderness?... because we like the taste of freedom; because we like the smell of danger.

The absurd vanity of metaphysicians who like to imagine that they create the world by thinking about it.

If you feel that you're not ready to die, never fear; nature will give you complete and adequate assistance when the time comes.

Science transcends mere politics. As recent history demonstrates, scientists are as willing to work for a Tojo, a Hitler, or a Stalin as for the free nations of the West.

Reason has seldom failed us because it has seldom been tried.