„Trees sprout up just about everywhere in computer science...“

—  Donald Knuth, Vol. IV - A, Combinatorial Algorithms, Section 4.2.1.6 (2011)
Donald Knuth Foto
Donald Knuth
científico en computadoras estadounidense 1938
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„Science Fiction has rivets, fantasy has trees.“

—  Orson Scott Card American science fiction novelist 1951

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„There does not exist a category of science to which one can give the name applied science. There are sciences and the applications of science, bound together as the fruit of the tree which bears it.“

—  Louis Pasteur French chemist and microbiologist 1822 - 1895
Revue Scientifique (1871) Variant translation: There are no such things as applied sciences, only applications of science.

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Hal Abelson Foto
Edsger W. Dijkstra Foto

„As a result, the topic became – primarily in the USA – prematurely known as ‘computer science’ – which, actually, is like referring to surgery as ‘knife science’ – and it was firmly implanted in people’s minds that computing science is about machines and their peripheral equipment. Quod non“

—  Edsger W. Dijkstra Dutch computer scientist 1930 - 2002
Context: A confusion of even longer standing came from the fact that the unprepared included the electronic engineers that were supposed to design, build and maintain the machines. The job was actually beyond the electronic technology of the day, and, as a result, the question of how to get and keep the physical equipment more or less in working condition became in the early days the all-overriding concern. As a result, the topic became – primarily in the USA – prematurely known as ‘computer science’ – which, actually, is like referring to surgery as ‘knife science’ – and it was firmly implanted in people’s minds that computing science is about machines and their peripheral equipment. Quod non [Latin: "Which is not true"]. We now know that electronic technology has no more to contribute to computing than the physical equipment. We now know that programmable computer is no more and no less than an extremely handy device for realizing any conceivable mechanism without changing a single wire, and that the core challenge for computing science is hence a conceptual one, viz., what (abstract) mechanisms we can conceive without getting lost in the complexities of our own making. Dijkstra (1986) On a cultural gap http://www.cs.utexas.edu/users/EWD/transcriptions/EWD09xx/EWD924.html (EWD 924).

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„Understanding is, after all, what science is all about — and science is a great deal more than mindless computation.“

—  Roger Penrose English mathematical physicist, recreational mathematician and philosopher 1931
As quoted in The Golden Ratio : The Story of Phi, the World's Most Astonishing Number (2002) by Mario Livio, p. 201.

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Friedrich Bauer Foto

„Software engineering is the part of computer science which is too difficult for the computer scientist.“

—  Friedrich Bauer German computer scientist 1924 - 2015
Bauer (1971) "Software Engineering." Information Processing: Proceedings of the IFIP Congress 1971, Ljubljana, Yugoslavia, August 23-28, 1971.

George William Russell Foto

„And from the magic tree of life the fruit falls everywhere.“

—  George William Russell Irish writer, editor, critic, poet, and artistic painter 1867 - 1935
Context: For sure the enchanted waters pour through every wind that blows. I think when night towers up aloft and shakes the trembling dew How every high and lonely thought that thrills my being through Is but a ruddy berry dropped down through the purple air, And from the magic tree of life the fruit falls everywhere.

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Donald Ervin Knuth Foto

„I can’t be as confident about computer science as I can about biology. Biology easily has 500 years of exciting problems to work on. It’s at that level.“

—  Donald Ervin Knuth American computer scientist 1938
Computer Literacy Bookshops Interview http://karthikr.wordpress.com/2006/04/06/donald-knuth-%e2%80%94-computer-literacy-bookshops-interview-1993/ Computer Literacy Bookshops Interview (1993) On why bioinformatics is very exciting

„In science there are no 'depths'; there is surface everywhere.“

—  Rudolf Carnap German philosopher 1891 - 1970
Rudolf Carnap (1929) from the Vienna Circle manifesto.

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