It was a mistake to speak one's mind at any time, unless it perfectly matched your political purpose; and it never did.

What kind of Dv would it take to escape history, to escape an inertia that powerful, and carve a new course? The hardest part is leaving Earth behind.

You can't choose your childhood, it's just what happens to you. But after that you choose. And that's really what (makes you).

Life is insanely robust, though we can make species go extinct, and this is the bad thing. So I always make the point that you can't say, 'Is it too late?' That is the terrible question, because either answer promotes inaction. If it's too late, you don't need to act; if it's not too late, you don't need to act.

Historical analogy is the last refuge of people who can't grasp the current situation.

The only part of an argument that really matters is what we think of the people arguing.

It's too bad we only had the courage to live our lives fully in dreams.