Frasi di Godfrey Harold Hardy

“Archimede sarà ricordato quando Eschilo sarà dimenticato, perché le lingue muoiono ma le idee matematiche no. Immortalità è forse una parola ingenua ma, qualunque cosa significhi, un matematico ha le migliori probabilità di conseguirla.”

“Beh, io ho fatto qualcosa che voi non sareste mai stati capaci di fare: ho collaborato con Littlewood e Ramanujan, su un piano quasi di parità.”

“Le forme create dal matematico, come quelle create dal pittore o dal poeta, devono essere belle; le idee, come i colori o le parole, devono legarsi armoniosamente. La bellezza è il requisito fondamentale: al mondo non c'è un posto perenne per la matematica brutta.”

“317 è un numero primo, non perché lo pensiamo noi, o perché la nostra mente è conformata in un modo piuttosto che in un altro, ma perché è così, perché la realtà matematica è fatta così.”

“La reductio ad absurdum, tanto amata da Euclide, è una delle più belle armi di un matematico. È un gambetto molto più raffinato di qualsiasi gambetto degli scacchi: un giocatore di scacchi può offrire in sacrificio un pedone o anche qualche altro pezzo, ma il matematico offre la partita.”

“Non conosco un solo esempio di un grande progresso matematico intrapreso da un uomo che abbia superato i cinquant'anni.”

“La matematica pura è nel complesso decisamente più utile di quella applicata. Questo perché ciò che è utile più di tutto è la tecnica, e la tecnica matematica viene insegnata principalmente attraverso la matematica pura.”

“Il matematico, come il pittore e il poeta, è un creatore di forme. Se le forme che crea sono più durature delle loro è perché le sue sono fatte di idee.”

“The mathematician’s patterns, like the painter’s or the poet’s must be beautiful; the ideas like the colours or the words, must fit together in a harmonious way. Beauty is the first test: there is no permanent place in the world for ugly mathematics.”

“Reductio ad absurdum, which Euclid loved so much, is one of a mathematician's finest weapons. It is a far finer gambit than any chess play: a chess player may offer the sacrifice of a pawn or even a piece, but a mathematician offers the game.”

“I am interested in mathematics only as a creative art.”

“No discovery of mine has made, or is likely to make, directly or indirectly, for good or ill, the least difference to the amenity of the world.”

“317 is a prime, not because we think so, or because our minds are shaped in one way rather than another, but because it is, because mathematical reality is built that way.”

“…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.”

“… there is no scorn more profound, or on the whole more justifiable, than that of the men who make for the men who explain. Exposition, criticism, appreciation, is work for second-rate minds.”

“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.”

“Chess problems are the hymn-tunes of mathematics.”

“No one has yet discovered any warlike purpose to be served by the theory of numbers or relativity, and it seems unlikely that anyone will do so for many years.”

“Pure mathematics is on the whole distinctly more useful than applied. […] For what is useful above all is technique, and mathematical technique is taught mainly through pure mathematics.”

“I still say to myself when I am depressed and find myself forced to listen to pompous and tiresome people "Well, I have done one thing you could never have done, and that is to have collaborated with Littlewood and Ramanujan on something like equal terms."”

“If a man has any genuine talent, he should be ready to make almost any sacrifice in order to cultivate it to the full.”

“I am obliged to interpolate some remarks on a very difficult subject: proof and its importance in mathematics. All physicists, and a good many quite respectable mathematicians, are contemptuous about proof. I have heard Professor Eddington, for example, maintain that proof, as pure mathematicians understand it, is really quite uninteresting and unimportant, and that no one who is really certain that he has found something good should waste his time looking for proof.”

“Archimedes will be remembered when Aeschylus is forgotten, because languages die and mathematical ideas do not. "Immortality" may be a silly word, but probably a mathematician has the best chance of whatever it may mean.”

“A mathematician, like a painter or a poet, is a maker of patterns. If his patterns are more permanent than theirs, it is because they are made with ideas.”

“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."”

“If I knew I was going to die today, I think I should still want to hear the cricket scores.”