When I was a kid, I loved books about heuristics—rules of thumb, aphoristic laws, and the sort. I’ve still got probably a dozen of those books and I think I probably checked out every other one at my local library.
Edge.org asked famous people for their laws and they’ve got quite a comprehensive collection. I’ve read through a few, but my love of heuristics has slackened over time. Maybe this will be the catalyst that rekindles my affection for them.