"Testing may convincingly demonstrate the presence of bugs, but can never demonstrate their absence."- Edsger W. Dijkstra, Computing Pioneer (1930–20… - Gerald M. Weinberg

"Testing may convincingly demonstrate the presence of bugs, but can never demonstrate their absence."- Edsger W. Dijkstra, Computing Pioneer (1930–2002), "Programming as a discipline of mathematical nature," Am. Math. Monthly, 81 (1974), No. 6, pp. 608–12.

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About Gerald M. Weinberg

Gerald M. Weinberg (October 27, 1933 – August 7, 2018) was an American computer scientist, author and teacher of the psychology and anthropology of computer software development.

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Additional quotes by Gerald M. Weinberg

Programming is generally a manual operation — we laugh when someone asks us to “say something in FORTRAN.” It is a written language, and in spite of its resemblance to other written languages, it differs from them in not having a speech system behind it. Not that written languages are simple transcriptions of speech, not at all; but a written language such as English is strongly influenced by its relationship to a spoken language. This influence is not so strong in other written languages, such as those using the Chinese writing system, but the influence — the mutual influence — always exists.

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