Habits begin to form at the very first repetition. After that there is a tropism toward repetition, for the patterns involved are defenses , bulwarks against time and despair.

The distinguishing mark of true adventures, is that it is often no fun at all while they are actually happening.

We should conceive of ourselves not as rulers of Earth, but as highly powerful, conscious stewards: The Earth is given to us in trust, and we can screw it up or make it work well and sustainably.

Desire is life trying to continue to be life. All living things desire... Life is wanting.

Many of the technologies we've invented are necessary to keep 6.5 billion people alive. We can't go back from that, so we need to decarbonize really rapidly.

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.

Every moment an epiphany arrives and cleaves the mountain asunder