Linux evolved in a completely different way. From nearly the beginning, it was rather casually hacked on by huge numbers of volunteers coordinating only through the Internet.

Programmer time is expensive; conserve it in preference to machine time

In the U.S., blacks are 12% of the population but commit 50% of violent crimes; can anyone honestly think this is unconnected to the fact that they average 15 points of IQ lower than the general population? That stupid people are more violent is a fact independent of skin color.

I believe, but cannot prove, that global “AIDS” is a whole cluster of unrelated diseases all of which have been swept under a single rug for essentially political reasons, and that the identification of HIV as the sole pathogen is likely to go down as one of the most colossal blunders in the history of medicine.

Rushing to optimize before the bottlenecks are known may be the only error to have ruined more designs than feature creep. From tortured code to incomprehensible data layouts, the results of obsessing about speed or memory or disk usage at the expense of transparency and simplicity are everywhere. They spawn innumerable bugs and cost millions of man-hours - often, just to get marginal gains in the use of some resource much less expensive than debugging time

To solve an interesting problem, start by finding a problem that is interesting to you.

Good programmers know what to write. Great ones know what to rewrite (and reuse)