"Ask Bill why the string in function 9 is terminated by a dollar sign. Ask him, because he can't answer. Only I know that."

“It's fun to sit at a terminal and let the code flow. It sounds strange, but it just comes out my brain; once I'm started, I don't have to think about it.”

“I've told this story to lots of people and they just won't get it. All they want to get is that IBM showed up and Gary was off flying his aeroplane. The problem is that this is very wrong.… The real issue wasn't that Gary refused to talk to IBM. The real issue was that Microsoft had a much better vision for the business. Gary was very laid-back. He did not care that much.”

“He is divisive. He is manipulative. He is a user. He has taken much from me and the industry.”

“I expected too much of educators. I expected them to understand, in a sense, the sugar-coated concepts of LISP used in AI that were embodied in the Logo language. It was then that I learned that computers were built to make money, not minds.”

“The ALGOL compiler was probably one of the nicest pieces of code to come out at that time. I spent hours trying to fix and change the compiler. Working with it so closely affected the way I think about programming and had a profound influence on my style.”

“You need to study other people's work. Their approaches to problem solving and the tools they use give you a fresh way to look at your own work.”