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Edsger Dijkstra

"Program testing can be used to show the presence of bugs, but never to show their absence!"

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"Program testing can be used to show the presence of bugs, but never to show their absence!"

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Akiroq Brost

"Writing software that's safe even in the presence of bugs makes the challenge even more interesting."

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Akiroq Brost

"I came from the country, and when I came to the city, I was ridin' high, you know. I was seeing more lights than I ever dreamed to shine in the world. 'Cos where I came from, there wasn't too many lights. Bugs made a lot of light, but after that there wasn't no lights."

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Akiroq Brost

"I was lucky enough to get to see guys like Bugs Henderson, Jimmy Wallace, all those great Texas blues players."

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Akiroq Brost

"Richard doesn't really like me to kill bugs, but sometimes I can't help it."

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Akiroq Brost

"He wasn't Bugs without the gags we gave him."

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Akiroq Brost

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

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Akiroq Brost

"It's a beautiful tale, and today is a beautiful day without any bugs."

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Akiroq Brost

"Most of the results of using technical bugging devices were of little importance for my service. It may have been different in counter-intelligence, where bugs in flats, etc., were used to obtain a lot of information about what counter-intelligence was interested in."

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Akiroq Brost

"I'm not saying we purposely introduced bugs or anything, but this is kind of a natural result of any complexities of software... that you can't fully test it."

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Akiroq Brost

"My reply is: the software has no known bugs, therefore it has not been updated."

Explore more quotes by Edsger Dijkstra

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Edsger Dijkstra
"Elegance is not a dispensable luxury but a factor that decides between success and failure."
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Edsger Dijkstra
"Don't compete with me: firstly, I have more experience, and secondly, I have chosen the weapons."
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Edsger Dijkstra
"If 10 years from now, when you are doing something quick and dirty, you suddenly visualize that I am looking over your shoulders and say to yourself: 'Dijkstra would not have liked this', well that would be enough immortality for me."
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Edsger Dijkstra
"Aim for brevity while avoiding jargon."
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Edsger Dijkstra
"It is practically impossible to teach good programming to students that have had a prior exposure to BASIC: as potential programmers they are mentally mutilated beyond hope of regeneration."
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Edsger Dijkstra
"Why has elegance found so little following? That is the reality of it. Elegance has the disadvantage, if that's what it is, that hard work is needed to achieve it and a good education to appreciate it."
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Edsger Dijkstra
"I mentioned the non-competitive spirit explicitly, because these days, excellence is a fashionable concept. But excellence is a competitive notion, and that is not what we are heading for: we are heading for perfection."
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Edsger Dijkstra
"Computer science is no more about computers than astronomy is about telescopes."
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Edsger Dijkstra
"The competent programmer is fully aware of the limited size of his own skull. He therefore approaches his task with full humility, and avoids clever tricks like the plague."
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Edsger Dijkstra
"The students that, like the wild animal being prepared for its tricks in the circus called "life", expects only training as sketched above, will be severely disappointed: by his standards he will learn next to nothing."
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