With enough eyes, all bugs are shallow.

Treating your users as co-developers is your least-hassle route to rapid code improvement and effective debugging.

A software system is transparent when you can look at it and immediately see what is going on. It is simple when what is going on is uncomplicated enough for a human brain to reason about all the potential cases without strain

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

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.

Lisp was far more powerful and flexible than any other language of its day; in fact, it is still a better design than most languages of today, twenty-five years later. Lisp freed ITS's hackers to think in unusual and creative ways. It was a major factor in their successes, and remains one of hackerdom's favorite languages.

It is widely grokked that cats have the hacker nature