Evolution is not something you can believe in or not believe in like do you believe in gravity.

There are just two people entitled to refer to themselves as "we"; one is the editor and the other is the fellow with a tapeworm.

I like to regard myself as someone who's capable of critical thought, that is to say, who can evaluate claims.

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pass through this era.

Science is the best idea humans have ever had. The more people who embrace that idea, the better.

The oncoming trouble I speak of is climate change. It's going to affect all of you in the same way the Second World War consumed people of my parent's generation.

My father was a very good Boy Scout. He was very skilled with knots, and he showed me how to tie a bow tie.