"I noticed this because I had the good fortune in the 1970's to be part of a community of programmers who shared software. Now, this community could trace its ancestry essentially back to the beginning of computing."
[...]
"And then I heard that somebody at Carnegie Mellon University had a copy of that software [for the broken printer]. So I was visiting there later, so I went to his office and I said, "Hi, I'm from MIT. Could I have a copy of the printer source code?" And he said "No, I promised not to give you a copy." [Laughter] I was stunned. I was so -- I was angry, and I had no idea how I could do justice to it. All I could think of was to turn around on my heel and walk out of his room. Maybe I slammed the door. [Laughter] And I thought about it later on, because I realized that I was seeing not just an isolated jerk, but a social phenomenon that was important and affected a lot of people."