Most songwriters who have been lucky enough to have their song on the radio or be heard widely don't know anything about science. The best songs have a strong dose of metaphor. Most songs about science don't have that. Like 'She Blinded Me With Science.' It's a stupid song, no offense to Thomas Dolby.

It's my firm conclusion that human meaning comes from humans, not from a supernatural source. After we die, our hopes for an afterlife reside in the social networks that we influenced while we were alive. If we influence people in a positive way -- even if our social web is only as big as our nuclear family -- others will want to emulate us and pass on our ideas, manners, and lifestyle to future generations. This is more than enough motivation for me to do good things in my life and teach my children to do the same.

I don't bill myself as an atheist but as a naturalist. Naturalism is a belief system. A lot of scientists bristle at that. We all have to believe we can find the truth. Evidence is my guide. I rely on observation, experimentation and verification.

It gives evolutionary biologists great status if they champion competition and the economists have to consult them. The economists have to consult the evolutionary biologists, because they are the ones who invented the idea of competition. It comes from the field of evolution.

The problem is, as a company, if you attempt to streamline knowledge or try to limit information you get accused of censorship. So they have to open the gates to any a**hole's opinion. It's like 'oh that opinion is valid'. No, it's not. Not all opinions are valid, you know? It's this idea that every kid gets a trophy. Yeah, but someone won the game!

It's extremely hard to get rid of any population. When they say polio is essentially wiped out, it's not. If we let up on the vaccinations, it will make a come back.

I'm saying that there were many great naturalists before Darwin's time who were very pious people and who knew more about nature than most of us. These were great naturalists; people I would admire for their knowledge of natural science given the time.