Even as I speak, the very last polar bear may be dying of hunger on account of climate change, on account of us. And I sure miss the polar bears. Their babies are so warm and cuddly and trusting, just like ours.

I think you guys are going to have to come up with a lot of wonderful new lies, or people just aren't going to want to go on living.

A lover's a liar, To himself he lies, The truthful are loveless, Like oysters their eyes!

In the middle of Siberia I guess there's a lake that big [ like the Great Lakes], but there are practically no other lakes that big with fresh water.

What memories for mud to have.

Two radical ideas have been introduced into human thought. One of them is that energy and matter are pretty much the same sort of stuff. That's Einstein. The other is that revenge is a bad idea. Revenge is an enormously popular idea but, of course, Jesus came along with the radical idea of forgiveness. If you're insulted, you have to square accounts. So this invention by Jesus is as radical as Einstein's.

I've often thought there ought to be a manual to hand to little kids, telling them what kind of planet they're on, why they don't fall off it, how much time they've probably got here, how to avoid poison ivy, and so on.