Every program has (at least) two purposes: the one for which it was written and another for which it wasn’t.
ALAN PERLISThere are two ways to write error-free programs; only the third one works.
More Alan Perlis Quotes
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Every reader should ask himself periodically.
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I think it is inevitable that people program poorly.
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When a professor insists computer science is X but not Y, have compassion for his graduate students.
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A LISP programmer knows the value of everything, but the cost of nothing.
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Simplicity does not precede complexity, but follows it.
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One can’t proceed from the informal to the formal by formal means.
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Optimization hinders evolution.
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We began to feel as if we really were responsible for the successful, error-free perfect use of these machines.
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You think you KNOW when you learn.
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You’ve solved the wrong problem. Work hard to improve.
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“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.
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In computing, the mean time to failure keeps getting shorter.
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One man’s constant is another man’s variable.
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Computer Science is embarrassed by the computer.
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When it started out, it was an awful lot of fun. Of course, the paying customers got shafted every now and then, and after a while we began to take their complaints seriously.
ALAN PERLIS