The AV Club has a great interview up with animator Don Hertzfeldt. You're most likely to know him from his short film Rejected but he's got a number of other short films I can't recommend enough. His interview is insightful, humble and inspiring. I particularly enjoyed this quote:

But at the end of the day, it’s every filmmaker’s dream to just be able to make the movies that they want to make and have an audience waiting for them. I just feel so lucky, and I think that’s a big part of the reason I work so hard, because I feel stupid when I’m not making a movie. I feel stupid when I’m not in production on something, because this is such a rare thing. I just feel dumb if I’m squandering it and not doing something.

There's something alluring about that sort of hypercritical nature and how it drives you to do more.