I don't have hard numbers about this, but the impression I get is that the amount of eyeballs you get from being on the humor shelf at Barnes & Noble - it is almost insignificant.

The universe is probably littered with the one-planet graves of cultures which made the sensible economic decision that there's no good reason to go into space-each discovered, studied, and remembered by the ones who made the irrational decision.

You don't become great by trying to be great. You become great by wanting to do something, and then doing it so hard that you become great in the process.

I read comics and I did science, and never really put them together until I accidentally found myself in the middle of one.

A million people can call the mountains a fiction, yet it need not trouble you as you stand atop them.

But I’ve never seen the Icarus story as a lesson about the limitations of humans. I see it as a lesson about the limitations of wax as an adhesive.

Take wrong turns. Talk to strangers. Open unmarked doors. And if you see a group of people in a field, go find out what they are doing. Do things without always knowing how they'll turn out.