There really is no such thing as race.

Apparently there is redundancy in memory: You store the same memory in different parts of your brain for accessing at different speeds. That speed would depend on the frequency of use and the importance of the knowledge.

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.

Science is the best thing humans beings have ever come up with. And if it isn't, science will fix it.

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

A two-and-a-half-year-old is pretty experienced at making a mess, anyway.

I say to the grown-ups, 'If you want to deny evolution and live in your world that's completely inconsistent with everything we've observed in the universe that's fine. But don't make your kids do it.'