Godfrey Harold Hardy cytaty
Godfrey Harold Hardy
Data urodzenia: 7. Luty 1877
Data zgonu: 1. Grudzień 1947
Godfrey Harold Hardy – angielski matematyk.
Był profesorem Uniwersytetu w Cambridge. Jego prace dotyczyły teorii liczb, teorii szeregów i równań całkowych. Jednym z jego osiągnięć było „odkrycie” hinduskiego matematyka Srinivasa Ramanujana, z którym współpracował od 1914.
Udowodnił, że częstości genotypów w populacji diploidalnej nie zmieniają się z pokolenia na pokolenie, przy spełnieniu określonych warunków . Znany jest także z wydanego w 1940 eseju A Mathematician's Apology opisującego jego życie i poglądy. Książka ukazała się również w Polsce pod tytułem Apologia matematyka.
Cytaty Godfrey Harold Hardy
„Mathematicians have constructed a very large number of different systems of geometry, Euclidean or non-Euclidean, of one, two, three, or any number of dimensions. All these systems are of complete and equal validity. They embody the results of mathematicians' observations of their reality, a reality far more intense and far more rigid than the dubious and elusive reality of physics. The old-fashioned geometry of Euclid, the entertaining seven-point geometry of Veblen, the space-times of Minkowski and Einstein, are all absolutely and equally real.... There may be three dimensions in this room and five next door. As a professional mathematician, I have no idea; I can only ask some competent physicist to instruct me in the facts.
The function of a mathematician, then, is simply to observe the facts about his own intricate system of reality, that astonishingly beautiful complex of logical relations which forms the subject-matter of his science, as if he were an explorer looking at a distant range of mountains, and to record the results of his observations in a series of maps, each of which is a branch of pure mathematics.... Among them there perhaps none quite so fascinating, with quite the astonishing contrasts of sharp outline and shade, as that which constitutes the theory of numbers.“
— G. H. Hardy
"The Theory of Numbers," Nature (Sep 16, 1922) Vol. 110 https://books.google.com/books?id=1bMzAQAAMAAJ p. 381
„... there is probably less difference between the positions of a mathematician and of a physicist than is generally supposed, [... ] the mathematician is in much more direct contact with reality. This may seem a paradox, since it is the physicist who deals with the subject-matter usually described as ‘real’, but [... ] [a physicist] is trying to correlate the incoherent body of crude fact confronting him with some definite and orderly scheme of abstract relations, the kind of scheme he can borrow only from mathematics.“
„Bradman is a whole class above any batsman who has ever lived: if Archimedes, Newton and Gauss remain in the Hobbs class, I have to admit the possibility of a class above them, which I find difficult to imagine. They had better be moved from now on into the Bradman class.“
— G. H. Hardy
Quoted by C. P. Snow in his introduction to reprints of the book.
„A painter makes patterns with shapes and colours, a poet with words. A painting may embody an ‘idea’, but the idea is usually commonplace and unimportant. In poetry, ideas count for a good deal more; but, [... ] the importance of ideas in poetry is habitually exaggerated: '... Poetry is not the thing said but a way of saying it.' [In poetry, ] the poverty of the ideas seems hardly to affect the beauty of the verbal pattern.“
„He could remember the idiosyncrasies of numbers in an almost uncanny way. It was Littlewood who said that every positive integer was one of Ramanujan's personal friends. I remember once going to see him when he was ill at Putney. I had ridden in taxi cab number 1729 and remarked that the number seemed to me rather a dull one, and that I hoped it was not an unfavorable omen. "No," he replied, "it is a very interesting number; it is the smallest number expressible as the sum of two cubes in two different ways."“
— G. H. Hardy
Ch. I : The Indian mathematician Ramanujan.