Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.

Microsoft is not the problem. Microsoft is the symptom.

Any tool should be useful in the expected way, but a truly great tool lends itself to uses you never expected.

When I hear the words "social responsibility," I want to reach for my gun.

If you have the right attitude, interesting problems will find you.

A security system is only as secure as its secret. Beware of pseudo-secrets.

If Unix could present the same face, the same capabilities, on machines of many different types, it could serve as a common software environment for all of them.