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"Anyone who considers arithmetical methods of producing random digits is, of course, in a state of sin. "
John von Neumann
(Mathematician)
Geboren op : 28-12-1903, Budapest, Hungary. Overleden op : 08-02-1957, Washington DC, USA.
( wiskunde )
"It would appear that we have reached the limits of what is possible to achieve with computer technology, although one should be careful with such statements, as they tend to sound pretty silly in 5 years." (1949)
John von Neumann
(Mathematician)
Geboren op : 28-12-1903, Budapest, Hungary. Overleden op : 08-02-1957, Washington DC, USA.
( technologie IT geschiedenis )
"There's no sense in being precise when you don't even know what you're talking about."
John von Neumann
(Mathematician)
Geboren op : 28-12-1903, Budapest, Hungary. Overleden op : 08-02-1957, Washington DC, USA.
( wiskunde wetenschap )
"In mathematics you don't understand things. You just get used to them."
John von Neumann
(Mathematician)
Geboren op : 28-12-1903, Budapest, Hungary. Overleden op : 08-02-1957, Washington DC, USA.
( wiskunde wetenschap )
"Why am I going to New York?"
John von Neumann
(Mathematician)
Geboren op : 28-12-1903, Budapest, Hungary. Overleden op : 08-02-1957, Washington DC, USA.
( wiskunde werk humor folklore )
"We can only see a short distance ahead, but we can see plenty there that needs to be done."
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( wiskunde samenleving wetenschap filosofie technologie verbeelding )
"No, I'm not interested in developing a powerful brain. All I'm after is just a mediocre brain, something like the President of the American Telephone and Telegraph Company."
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( technologie werk humor IT )
"Science is a differential equation. Religion is a boundary condition."
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( wiskunde wetenschap filosofie religie humor )
"I believe that at the end of the century the use of words and general educated opinion will have altered so much that one will be able to speak of machines thinking without expecting to be contradicted."
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( technologie IT geschiedenis )
"Mathematical reasoning may be regarded rather schematically as the exercise of a combination of two facilities, which we may call intuition and ingenuity."
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( wiskunde wetenschap creativiteit verbeelding wijsheid kennis )
"In the time of Galileo it was argued that the texts, 'And the sun stood still ... and hasted not to go down about a whole day' (Joshua x. 13) and 'He laid the foundations of the earth, that it should not move at any time' (Psalm cv. 5) were an adequate refutation of the Copernican theory." (1950)
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( natuurkunde wiskunde wetenschap geschiedenis )
"A man provided with paper, pencil, and rubber, and subject to strict discipline, is in effect a universal Turing Machine." (1948)
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( technologie IT )
"The idea behind digital computers may be explained by saying that these machines are intended to carry out any operations which could be done by a human computer." (1950)
Alan Turing
(Software Engineer, Mathematician, Physicist)
Geboren op : 23-06-1912, Paddington, London, England. Overleden op : 07-06-1954, Wilmslow, Cheshire, England.
( werk IT geschiedenis )
"On two occasions, I have been asked [by members of Parliament], "Pray, Mr. Babbage, if you put into the machine wrong figures, will the right answers come out?" I am not able rightly to apprehend the kind of confusion of ideas that could provoke such a question."
Charles Babbage
(Software Engineer, Mathematician)
Geboren op : 26-12-1791. Overleden op : 18-10-1871
( technologie werk IT geschiedenis )
"Errors using inadequate data are much less than those using no data at all."
Charles Babbage
(Software Engineer, Mathematician)
Geboren op : 26-12-1791. Overleden op : 18-10-1871
( wiskunde wetenschap IT )
"Propose to any Englishman any principle or instrument, however admirable, and you will observe that the whole effort of the English mind is directed to find a difficulty, a defect, or an impossibility in it."
Charles Babbage
(Software Engineer, Mathematician)
Geboren op : 26-12-1791. Overleden op : 18-10-1871
( onderwijs wetenschap IT )
"Program testing can be used to show the presence of bugs, but never to show their absence."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"The question of whether a computer can think is no more interesting than the question of whether a submarine can swim."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"Computer science is no more about computers than astronomy is about telescopes."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT verbeelding )
"The use of COBOL cripples the mind; its teaching should, therefore, be regarded as a criminal offense."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs IT )
"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 Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs humor IT )
"For the absence of a bibliography I offer neither explanation nor apology."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( wetenschap humor IT )
"As economics is known as "The Miserable Science," software engineering should be known as "The Doomed Discipline": doomed because it cannot even approach its goal since its goal is self-contradictory. ... If you carefully read its literature and analyze what its devotees actually do, you will discover that software engineering has accepted as its charter, "How to program if you cannot." ... The practice is pervaded by the reasuring illusion that programs are just devices like any others, the only difference admitted being that their manufacture might require a new type of craftsman, viz., programmers. " (1989)
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"PL/1, "the fatal disease", belongs more to the problem set than to the solution set."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"[A program] has (...) the uncomfortable property that the smallest possible perturbations--i.e., changes of a single bit--can have the most drastic consequences." (1989)
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"APL is a mistake, carried through to perfection. It is the language of the future for the programming techniques of the past: it creates a new generation of coding bums." (1968)
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( filosofie werk IT )
"Besides a mathematical inclination, an exceptionally good mastery of one's native tongue is the most vital asset of a competent programmer."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( filosofie IT kennis )
"There are many different styles of composition. I characterize them always as Mozart versus Beethoven. When Mozart began to write at that time he had the composition ready in his mind. He wrote the manuscript and it was 'aus einem Guss' (casted as one). And it was also written very beautiful. Beethoven was an indecisive and a tinkerer and wrote down before he had the composition ready and plastered parts over to change them. There was a certain place where he plastered over nine times and one did remove that carefully to see what happened and it turned out the last version was the same as the first one." (2001)
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( werk creativiteit IT geschiedenis muziek )
"Object-oriented programming is an exceptionally bad idea which could only have originated in California."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"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 Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT geschiedenis )
"I mean, 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."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs IT )
"In the good old days physicists repeated each other's experiments, just to be sure. Today they stick to FORTRAN, so that they can share each other's programs, bugs included."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( natuurkunde wetenschap IT )
"Simplicity is prerequisite for reliability."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( filosofie IT )
"The prisoner falls in love with his chains."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( samenleving filosofie technologie IT verslaving )
"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."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( IT )
"If in physics there's something you don't understand, you can always hide behind the uncharted depths of nature. You can always blame God. You didn't make it so complex yourself. But if your program doesn't work, there is no one to hide behind. You cannot hide behind an obstinate nature. If it doesn't work, you've messed up."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( natuurkunde IT )
"Elegance is not a dispensable luxury but a factor that decides between success and failure."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( filosofie technologie IT )
"Why has elegance found so little following? Elegance has the disadvantage that hard work is needed to achieve it and a good education to appreciate it."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs wetenschap filosofie werk IT )
"The required techniques of effective reasoning are pretty formal, but as long as programming is done by people that don't master them, the software crisis will remain with us and will be considered an incurable disease. And you know what incurable diseases do: they invite the quacks and charlatans in, who in this case take the form of Software Engineering gurus."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs technologie IT )
"You must not give the world what it asks for, but what it needs."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( samenleving wetenschap filosofie IT kennis )
"We must not put mistakes into programs because of sloppiness, we have to do it systematical and with care."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( onderwijs filosofie IT )
"I realized that my prior projects were just finger warm-ups. Now I have to tackle complexity itself. But it took long, before I had assembled the courage to do so."
Edsger Wybe Dijkstra
(Mathematician)
Geboren op : 11-05-1930, Rotterdam, The Netherlands. Overleden op : 06-08-2002, Nuenen, The Netherlands.
( wetenschap technologie werk IT )
"Tact is the knack of making a point without making an enemy."
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( politiek werk )
"...from the same principles, I now demonstrate the frame of the System of the World. "
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap )
"I feign no hypotheses."
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap )
"Who, by vigor of mind almost divine, the motions and figures of the planets, the paths of comets, and the tides of the seas first demonstrated."
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap wijsheid kennis )
"The latest authors, like the most ancient, strove to subordinate the phenomena of nature to the laws of mathematics."
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap )
"The description of right lines and circles, upon which geometry is founded, belongs to mechanics. Geometry does not teach us to draw these lines, but requires them to be drawn. "
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap )
"To explain all nature is too difficult a task for any one man or even for any one age. 'Tis much better to do a little with certainty, and leave the rest for others hat come after you, than to explain all things. "
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( wiskunde wetenschap )
"If I have seen farther than others, it is because I have stood on the shoulders of giants."
Isaac Newton
(Mathematician, Physicist)
Geboren op : 25-12-1642, Lincolnshire, UK. Overleden op : 20-03-1727, Kensington, London, UK.
( natuurkunde wiskunde wetenschap werk geschiedenis wijsheid kennis )
"God does arithmetic."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde religie )
"You know that I write slowly. This is chiefly because I am never satisfied until I have said as much as possible in a few words, and writing briefly takes far more time than writing at length."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap filosofie )
"We must admit with humility that, while number is purely a product of our minds, space has a reality outside our minds, so that we cannot completely prescribe its properties a priori. "
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
" I mean the word proof not in the sense of the lawyers, who set two half proofs equal to a whole one, but in the sense of a mathematician, where half proof = 0, and it is demanded for proof that every doubt becomes impossible."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
" I have had my results for a long time: but I do not yet know how I am to arrive at them."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap werk verbeelding )
"I am coming more and more to the conviction that the necessity of our geometry cannot be demonstrated, at least neither by, nor for, the human intellect...geometry should be ranked, not with arithmetic, which is purely aprioristic, but with mechanics."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
" A great part of its [higher arithmetic] theories derives an additional charm from the peculiarity that important propositions, with the impress of simplicity on them, are often easily discovered by induction, and yet are of so profound a character that we cannot find the demonstrations till after many vain attempts; and even then, when we do succeed, it is often by some tedious and artificial process, while the simple methods may long remain concealed."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap filosofie )
"Theory attracts practice as the magnet attracts iron."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
" It is not knowledge, but the act of learning, not possession but the act of getting there, which grants the greatest enjoyment. When I have clarified and exhausted a subject, then I turn away from it, in order to go into darkness again; the never-satisfied man is so strange if he has completed a structure, then it is not in order to dwell in it peacefully, but in order to begin another. I imagine the world conqueror must feel thus, who, after one kingdom is scarcely conquered, stretches out his arms for others."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap werk verbeelding wijsheid )
"Finally, two days ago, I succeeded - not on account of my hard efforts, but by the grace of the Lord. Like a sudden flash of lightning, the riddle was solved. I am unable to say what was the conducting thread that connected what I previously knew with what made my success possible."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap werk creativiteit )
"Few, but ripe."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
"There are problems to whose solution I would attach an infinitely greater importance than to those of mathematics, for example touching ethics, or our relation to God, or concerning our destiny and our future; but their solution lies wholly beyond us and completely outside the province of science."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap filosofie religie wijsheid )
"If others would but reflect on mathematical truths as deeply and as continuously as I have, they would make my discoveries."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap )
"I confess that Fermat's Theorem as an isolated proposition has very little interest for me, because I could easily lay down a multitude of such propositions, which one could neither prove nor dispose of."
Carl Friedrich Gauss
(Mathematician, Physicist)
Geboren op : 30-04-1777, Brunswick-Lüneburg, Germany. Overleden op : 23-02-1855, Göttingen, Germany.
( wiskunde wetenschap werk )