The most powerful programming language is Lisp. If you don't know Lisp (or its variant, Scheme), you don't appreciate what a powerful language is. Once you learn Lisp you will see what is missing in most other languages.
Richard StallmanToday many people are switching to free software for purely practical reasons. That is good, as far as it goes, but that isn't all we need to do! Attracting users to free software is not the whole job, just the first step.
Richard StallmanSharing knowledge is the most fundamental act of friendship. Because it is a way you can give something without loosing something.
Richard Stallman