It was a world of acts, and words had no more influence on acts than the sound of a waterfall has on the flow of the stream.

It was not power that corrupted people, but fools who corrupted power.

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.

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).

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

Each of us have a gift, you see, given us freely by the universe. And each of us with every breath gives something back

First you fall in love with Antarctica, and then it breaks your heart.