The Fountainhead , I think, pretty much saved me in the initial years of Teach For America. I loved that book, but I’m not sure books were the seminal thing that guided my path. ... I think it was sort of about “the creator against the world,” and I was probably feeling at that point that I was up against lots of boulders, to pull off the big idea of Teach For America.

Well, many. I think Steinbeck, for example, was one of my favorites, Somerset Maugham, Hemingway. Quite a few.

I fell in love with the stories by William Beebe, who was an ocean explorer. He discussed what it was like to go down inside a submersible, and peer out of a port hole and see beautiful, luminescent fish, with lights down the side like ocean liners. Bizarre creatures of the sort that you just don’t see walking down the street, or going into the forest, or even looking around in shallow water.

That really crystallized for me what some really passionate founders who could write some code could do to change things, and this gave me the confidence to say, “You know what? They can do this. We can definitely do this.” ... So without a doubt, Reddit would not exist if it weren’t for Masters of Doom.

I’ve had a couple of ex-girlfriends sort of accuse me of having a personality disorder! … No, I don’t know. I’ve always been afraid of death. I’ve never wanted to die. Last year, I watched this guy die in Red Rock. It was this horrible freak accident thing. He fell and he cracked his head and basically just bled out. That was the first time I’d ever actually seen a climbing accident like that. It was kind of sobering — he was even wearing a helmet — it was a reminder of how dangerous climbing can be if things go wrong even when you have all the ropes on.