It is hard to write a simple definition of something as varied as hacking, but I think what these activities have in common is playfulness, cleverness, and exploration. Thus, hacking means exploring the limits of what is possible, in a spirit of playful cleverness. Activities that display playful cleverness have "hack value".

If in my lifetime the problem of non-free software is solved, I could perhaps relax and write software again. But I might instead try to help deal with the world's larger problems. Standing up to an evil system is exhilarating, and now I have a taste for it.

Also, because schools must teach the spirit of goodwill, the habit of helping others around you, every class should have this rule: students, if you bring software to class you may not keep it for yourself.

Think 'free speech,' not 'free beer.'

By the way, I hope you all know about the worldwide boycott of Coca Cola company for things like murdering union organizers in Colombia. See the site killercoke.org.

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.

I don’t have a problem with someone using their talents to become successful, I just don’t think the highest calling is success. Things like freedom and the expansion of knowledge are beyond success, beyond the personal. Personal success is not wrong, but it is limited in importance, and once you have enough of it it is a shame to keep striving for that, instead of for truth, beauty, or justice.