Tony Hoare Quotes

• Hay dos maneras de construir un diseño de software: Una es hacerlo tan sencillo que sea obvio que no hay deficiencias, y la otra es hacerlo tan complicado que no haya deficiencias obvias. El primer método es mucho más difícil.

  Tony Hoare

  Witty, Humorous, Simple

  "The Emperor's Old Clothes". Communications of the ACM 24 (2), (pp. 75-83), February 1981.

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• The unavoidable price of reliability is simplicity.

  Tony Hoare

  Simplicity, Reliability, Programming

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• I call it my billion-dollar mistake. It was the invention of the null reference in 1965.

  Tony Hoare

  Mistake, Dollars, Null

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• Inside every large program is a small program struggling to get out.

  Tony Hoare

  Struggle, Simplicity, Program

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• Some problems are better evaded than solved.

  Tony Hoare

  Problema

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• Here is a language so far ahead of its time, that it was not only an improvement on its predecessors, but also on nearly all its successors.

  Tony Hoare

  Improvement, Language, Programming

  "Hints on Programming Language Design", December 1973.

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• The real value of tests is not that they detect bugs in the code but that they detect inadequacies in the methods, concentration, and skills of those who design and produce the code.

  Tony Hoare

  Real, Skills, Design

  "How Did Software Get So Reliable Without Proof?". Lecture Notes in Computer Science vol. 1051, 1996 pp. 1-17: FME '96: Industrial Benefit and Advances in Formal Methods, Third International Symposium of Formal Methods Europe, Co-Sponsored by IFIP WG 14.3, Oxford, UK, March 18 - 22, 1996. Proceedings, March 6, 1996.

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• La optimización prematura es la raíz de todos los males en programación.

  Tony Hoare

  Roots, Evil, Simplicity

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• In the development of the understanding of complex phenomena, the most powerful tool available to the human intellect is abstraction. Abstraction arises from the recognition of similarities between certain objects, situations, or processes in the real world and the decision to concentrate on these similarities and to ignore, for the time being, their differences.

  Tony Hoare

  Powerful, Real, Learning

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• At first I hoped that such a technically unsound project would collapse but I soon realized it was doomed to success. Almost anything in software can be implemented, sold, and even used given enough determination. There is nothing a mere scientist can say that will stand against the flood of a hundred million dollars. But there is one quality that cannot be purchased in this way - and that is reliability. The price of reliability is the pursuit of the utmost simplicity. It is a price which the very rich find most hard to pay.

  Tony Hoare

  Determination, Learning, Code Quality

  "The Emperor's Old Clothes". Communications of the ACM 24, dl.acm.org. February 1981.

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• Programmers are always surrounded by complexity; we cannot avoid it.... If our basic tool, the language in which we design and code our programs, is also complicated, the language itself becomes part of the problem rather than part of its solution.

  Tony Hoare

  Design, Tools, Language

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• El precio de la fiabilidad es la búsqueda de la máxima sencillez. Un precio difícil de pagar para los más ricos.

  Tony Hoare

  Simplicity, Reliability, May

  "The Emperor's Old Clothes". Tony Hoare's lecture at the 1980 ACM Turing Award in Nashville, Tennessee; "Communications of the ACM", Volume 24, Issue 2, dl.acm.org. February 1981.

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• I couldn't resist the temptation to put in a null reference, simply because it was so easy to implement. This has led to innumerable errors, vulnerabilities, and system crashes, which have probably caused a billion dollars of pain and damage in the last forty years.

  Tony Hoare

  Pain, Errors, Years

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• You cannot teach beginners top-down programming, because they don't know which end is up.

  Tony Hoare

  Trust, Top Down, Beginners

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• I don't know what the language of the year 2000 will look like, but I know it will be called Fortran.

  Tony Hoare

  Years, Looks, Language

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• An ultimate joint challenge for the biological and the computational sciences is the understanding of the mechanisms of the human brain, and its relationship with the human mind.

  Tony Hoare

  Understanding, Challenges, Brain

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• What is the central core of the subject [computer science]? What is it that distinguishes it from the separate subjects with which it is related? What is the linking thread which gathers these disparate branches into a single discipline. My answer to these questions is simple -it is the art of programming a computer. It is the art of designing efficient and elegant methods of getting a computer to solve problems, theoretical or practical, small or large, simple or complex. It is the art of translating this design into an effective and accurate computer program.

  Tony Hoare

  Art, Learning, Simple

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• The job of formal methods is to elucidate the assumptions upon which formal correctness depends.

  Tony Hoare

  Jobs, Assumption, Formal

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• I was eventually persuaded of the need to design programming notations so as to maximize the number of errors which cannot be made, or if made, can be reliably detected at compile time.

  Tony Hoare

  Learning, Errors, Numbers

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