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.

In early 1993, a hostile observer might have had grounds for thinking that the Unix story was almost played out, and with it the fortunes of the hacker tribe.

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

The iPhone brand is in worse shape than I thought was even possible. And the implications of that are huge... The iPhone is in deep trouble.

Given enough eyeballs, all bugs are shallow (e.g., given a large enough beta-tester and co-developer base, almost every problem will be characterized quickly and the fix obvious to someone).

If you treat your beta-testers as if they're your most valuable resource, they will respond by becoming your most valuable resource.

Prototype, then polish. Get it working before you optimize it