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Beware of bugs in the above code I have only proved it correct, not tried it.

Donald Knuth

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Donald Knuth
Age: 86
Born: 1938
Born: January 10
Academic
Computer Scientist
Engineer
Historian Of Mathematics
Mathematician
Programmer
University Teacher
Writer
Milwaukee City
Wisconsin
Donald E. Knuth
Don Knuth
Donald Ervin Knuth
D.E.K.
DEK
Knuth
Code
Programmers
Tried
Beware
Computer
Bugs
Proved
Testing
Programming
Software
Correct

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Meta-design is much more difficult than design it's easier to draw something than to explain how to draw it.
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The enjoyment of one's tools is an essential ingredient of successful work.
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Programming is legitimate and necessary academic endeavour.
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We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil.
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TeX has found at least one bug in every Pascal compiler it's been run on, I think, and at least two in every C compiler
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I decry the current tendency to seek patents on algorithms. There are better ways to earn a living than to prevent other people from making use of one's contributions to computer science.
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How can you own numbers? Numbers belong to the world.
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It would be nice if we could design a virtual reality in Hyperbolic Space, and meet each other there.
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An algorithm must be seen to be believed.
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Let us change our traditional attitude to the construction of programs. Instead of imagining that our main task is to instruct a computer what to do, let us concentrate rather on explaining to human beings what we want a computer to do.
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I currently use Ubuntu Linux, on a standalone laptop - it has no Internet connection. I occasionally carry flash memory drives between this machine and the Macs that I use for network surfing and graphics but I trust my family jewels only to Linux.
Donald Knuth
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People think that computer science is the art of geniuses but the actual reality is the opposite, just many people doing things that build on each other, like a wall of mini stones.
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If you find that you're spending almost all your time on theory, start turning some attention to practical things it will improve your theories. If you find that you're spending almost all your time on practice, start turning some attention to theoretical things it will improve your practice.
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In fact, my main conclusion after spending ten years of my life working on the TEX project is that software is hard. It's harder than anything else I've ever had to do.
Donald Knuth
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A mathematical formula should never be owned by anybody! Mathematics belong to God.
Donald Knuth
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I define UNIX as 30 definitions of regular expressions living under one roof.
Donald Knuth
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Science is what we understand well enough to explain to a computer. Art is everything else we do.
Donald Knuth
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AI has by now succeeded in doing essentially everything that requires 'thinking' but has failed to do most of what people and animals do 'without thinking'-that, somehow, is much harder.
Donald Knuth
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The best practice is inspired by theory.
Donald Knuth
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My first program taught me a lot about the errors that I was going to be making in the future, and also about how to find errors. That's sort of the story of my life, making errors and trying to recover from them. I try to get things correct. I probably obsess about not making too many mistakes.
Donald Knuth