"The reason that a good citizen does not use such destructive means to become wealthier is that, if everyone did so, we would all become poorer from the mutual destructiveness."

"The point is with a proprietary program, when the users don't have the source code, we can never tell. So you must consider every proprietary program as potential malware."

"Proprietary software is a violation of human rights."

"The only way to keep something from being copied is to make it so bad it's not worth copying."

"When I introduced the Virgin of Emacs as a character into the routine, she was female because she was an allusion to the Virgin Mary, and an 'Emacs virgin' in the sense that she had never used Emacs."