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.

I think the comic that's gotten me the most feedback is actually the one about the stoplights. Noticing when the stoplights are in sync, or calculating the length of your strides between floor tiles - normal people notice that kind of stuff, but a certain kind of person will do some calculations.

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.

It's tempting to just write a comic called 'Everyone Mail Randall Munroe Twenty Bucks' - maybe it would work, and I could just close down the 'xkcd' store and sit on a beach and draw pictures and make snarky Reddit posts for the rest of my life.

I'm not sure why we romanticize 'young love,' or love in general...It just leads to the idea that either your love is pure, perfect and eternal, and you are storybook-compatible in every way with no problems, or you're LYING when you say 'I love you.

The scholarly authorities on freezing to death seem to be, unsurprisingly, Canadians.