Because of its vitality, the computing field is always in desperate need of new cliches: Banality soothes our nerves.

A LISP programmer knows the value of everything, but the cost of nothing.

There are two ways to write error-free programs; only the third one works.

Motto for a research laboratory: what we work on today, others will first think of tomorrow.

It is better to have 100 functions operate on one data structure than to have 10 functions operate on 10 data structures.

Every reader should ask himself periodically “Toward what end, toward what end?”—but do not ask it too often lest you pass up the fun of programming for the constipation of bittersweet philosophy.

A year spent in artificial intelligence is enough to make one believe in God.