If you want to know what programmers do, the best thing is to read their code, but failing that (or in addition to that) you need to read interviews like this. I wish someone would do another book like this covering programmers of the last 15 years, but this one has a very good selection of programmers from the early PC era, and the interviews are very well-done: they let the programmer speak, yet the interviewer keeps them on track.

Lampson: Everything should be made as simple as possible. But to do that you have to master complexity.

Lampson: A beautiful program is like a beautiful theorem: It does the job elegantly. It has a simple and perspicuous structure; people say, “Oh, yes. I see that’s the way to do it.”