I've always been more interested in organisms that can move on their own than in stationary plants. But when I canoe or hike along the edge of lakes or oceans and see trees that seem to be growing out of rock faces, I am blown away. How do they do it?

The failure of world leaders to act on the critical issue of global warming is often blamed on economic considerations.

The future doesn't exist. The only thing that exists is now and our memory of what happened in the past. But because we invented the idea of a future, we're the only animal that realized we can affect the future by what we do today.

If America wants to retain its position as a global power, its president must listen to the people and show strong leadership at this turning point in human history.

I trust life not because I trust the world, but because I trust the God who lives in my heart.

In certain strains of Judaism, there's a profound passion for the ineffable. Contemplation of God is meant to be forever elusive, because, you know, our tiny minds can't possibly comprehend Him. If we find ourselves comprehending Him, then we can be sure we're off track.

I'm your basic atheist that believes in maybe - I'm a spiritual atheist.

I was a member of the Nationalist Party for several years. I don't remember how long. Those were very dreary days, because the Nationalist Party... it's hard to describe what it was. I suppose it held on to some kind of little faith, you know? It wasn't even sure what the faith was, and it was a very despised enterprise by everybody.