We don't want to conquer the cosmos, we simply want to extend the boundaries of Earth to the frontiers of the cosmos.

To torture a man you have to know his pleasures.

A man who for an entire week does nothing but hit himself over the head has little reason to be proud.

Our ability to adapt and therefore to accept everything is one of our greatest dangers. Creatures that are completely flexible, changeable, can have no fixed morality.

The fate of a single man can be rich with significance, that of a few hundred less so, but the history of thousands and millions of men does not mean anything at all, in any adequate sense of the word.

I hadn't known there were so many idiots in the world until I started using the Internet.

I believe in no final solutions.