Tax dollars intended for science education must not be used to teach creationism as any sort of real explanation of nature, because any observation or process of inference about our origin and the nature of the universe disproves creationism in every respect.

If the Earth gets hit by an asteroid, it's game over. It's control-alt-delete for civilization.

Bicycling is a big part of the future. It has to be. There's something wrong with a society that drives a car to work out in a gym.

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

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

You start doing the addictive behavior to feel good and then your receptors get overloaded with dopamine, then you stop doing the addictive thing and some of the receptors have shut down and you don't have enough dopamine to feel good. So then you feel bad and go back to the addictive behavior to get more dopamine. The strange thing is that it works with what we think of as uppers and downers and whatever you call gambling - sidewaysers.

Our goal in science is to discover universal laws of nature. That pursuit fills me with wonder.