Adam Gopnik, in The New Yorker:

People who tell you that it is possible to think too hard about things are always the ones who aren’t good at thinking about things in the first place, just as people who tell you that you can make yourself sick from too much exercise are always the ones who don’t exercise at all.

Dedicated to the anonymous commenter in the Quesada thread who told me that, didn’t understand automatic spam protection, and quit in a huff after throwing around insults. I’m sure they’ll be touched to know I’m thinking about them… assuming that they broke their vow not to return to this site.