The last bit from a 1993 interview with David Foster Wallace [pdf] in Whiskey Island Magazine, some advice for young writers:

This is a long haul. Writing is a long haul. I’m hoping that none of the stuff that I’ve done so far is anywhere close to the best stuff I can do. Let’s hope we’re not fifty-five and doing the same thing. I’d say avoid burning out. You can burn out by struggling in privation and neglect for many years, but you can also bum out if you’re given a’ little bit of attention. People come to your hotel room and think you have interesting things to say. You can allow that to make you start to think that you can’t say anything unless it’s interesting. For me, 50% of the stuff I do is bad, and that’s just going to be the way it is, and if I can’t accept that then I’m not cut out for this. The trick is to know what’s bad and not let other people see it.