No one knows the diversity in the world, not even to the nearest order of magnitude. ... We don't know for sure how many species there are, where they can be found or how fast they're disappearing. It's like having astronomy without knowing where the stars are.

All three of the Abrahamic religions were born and nurtured in arid, disturbed environments.

America in particular imposes an horrendous burden on the world. We have this wonderful standard of living but it comes at enormous cost.

The one process now going on that will take millions of years to correct is the loss of genetic and species diversity by the destruction of natural habitats. This is the folly our descendants are least likely to forgive us.

The true evolutionary epic, retold as poetry, is as intrinsically ennobling as any religious epic.

No barrier stands between the material world of science and the sensibilities of the hunter and the poet.

Every kid has a bug period, I like to say, and I just got so fascinated and I had that experience, that wonderful life of being able to go out on my own without really any supervision at all. I just lucked out that way. I was trusted as a kid.