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A convincing demonstration of correctness being impossible as long as the mechanism is regarded as a black box, our only hope lies in not regarding the mechanism as a black box.

Edsger Dijkstra

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Edsger Dijkstra
Age: 72 †
Born: 1930
Born: May 11
Died: 2002
Died: August 5
Computer Scientist
Engineer
Mathematician
Physicist
Scientist
University Teacher
R'dam
Edsger Dijkstra
Edsger Wybe Dijkstra
Dijkstra
EWD
E.W. Dijkstra
Boxes
Lies
Impossible
Correctness
Lying
Regarding
Hope
Demonstration
Black
Convincing
Long
Regarded
Mechanism

More quotes by Edsger Dijkstra

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Simplicity is prerequisite for reliability.
Edsger Dijkstra
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Probably I am very naive, but I also think I prefer to remain so, at least for the time being and perhaps for the rest of my life.
Edsger Dijkstra
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The computing scientist's main challenge is not to get confused by the complexities of his own making.
Edsger Dijkstra
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Production speed is severely slowed down if one works with half-time people who have other obligations as well. This is at least a factor of four probably it is worse.
Edsger Dijkstra
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Computer science is no more about computers than astronomy is about telescopes.
Edsger Dijkstra
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Programming is one of the most difficult branches of applied mathematics the poorer mathematicians had better remain pure mathematicians.
Edsger Dijkstra
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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.
Edsger Dijkstra
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How do we convince people that in programming simplicity and clarity - in short: what mathematicians call elegance - are not a dispensable luxury, but a crucial matter that decides between success and failure?
Edsger Dijkstra
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Much of the excitement we get out of our work is that we don't really know what we are doing.
Edsger Dijkstra
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I think of the company advertising Thought Processors or the college pretending that learning BASIC suffices or at least helps, whereas the teaching of BASIC should be rated as a criminal offence: it mutilates the mind beyond recovery.
Edsger Dijkstra
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Mentally mutilated potential programmers beyond hope of regeneration.
Edsger Dijkstra
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FORTRAN, the infantile disorder, by now nearly 20 years old, is hopelessly inadequate for whatever computer application you have in mind today: it is now too clumsy, too risky, and too expensive to use.
Edsger Dijkstra
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The ability of discerning high quality unavoidably implies the ability of identifying shortcomings.
Edsger Dijkstra
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Aim for brevity while avoiding jargon.
Edsger Dijkstra
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I don't need to waste my time with a computer just because I am a computer scientist.
Edsger Dijkstra
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Industry suffers from the managerial dogma that for the sake of stability and continuity, the company should be independent of the competence of individual employees.
Edsger Dijkstra
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Experience does by no means automatically leads to wisdom and understanding.
Edsger Dijkstra
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LISP has jokingly been described as the most intelligent way to misuse a computer. I think that description is a great compliment because it transmits the full flavour of liberation: it has assisted a number of our most gifted fellow humans in thinking previously impossible thoughts.
Edsger Dijkstra
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The use of anthropomorphic terminology forces you linguistically to adopt an operational view. And it makes it practically impossible to argue about programs independently of their being executed.
Edsger Dijkstra
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... as a slow-witted human being I have a very small head and I had better learn to live with it and to respect my limitations and give them full credit, rather than to try to ignore them, for the latter vain effort will be punished by failure.
Edsger Dijkstra