Idiots can be defeated but they never admit it.

Playfully doing something difficult, whether useful or not, that is hacking.

If you want to accomplish something in the world, idealism is not enough - you need to choose a method that works to achieve the goal.

The desire to be rewarded for one's creativity does not justify depriving the world in general of all or part of that creativity.

People get the government their behavior deserves. People deserve better than that.

The principal lesson of Emacs is that a language for extensions should not be a mere "extension language". It should be a real programming language, designed for writing and maintaining substantial programs. Because people will want to do that!

Sharing knowledge is the most fundamental act of friendship. Because it is a way you can give something without loosing something.