Paul A.M. Dirac > Quotes

“Pick a flower on Earth and you move the farthest star.”
― Paul A.M. Dirac

“In science one tries to tell people, in such a way as to be understood by everyone, something that no one ever knew before. But in poetry, it's the exact opposite.”
― Paul Dirac

“The measure of greatness in a scientific idea is the extent to which it stimulates thought and opens up new lines of research.”
― Paul Dirac

“I cannot understand why we idle discussing religion. If we are honest—and scientists have to be—we must admit that religion is a jumble of false assertions, with no basis in reality. The very idea of God is a product of the human imagination. It is quite understandable why primitive people, who were so much more exposed to the overpowering forces of nature than we are today, should have personified these forces in fear and trembling. But nowadays, when we understand so many natural processes, we have no need for such solutions. I can't for the life of me see how the postulate of an Almighty God helps us in any way. What I do see is that this assumption leads to such unproductive questions as why God allows so much misery and injustice, the exploitation of the poor by the rich and all the other horrors He might have prevented. If religion is still being taught, it is by no means because its ideas still convince us, but simply because some of us want to keep the lower classes quiet. Quiet people are much easier to govern than clamorous and dissatisfied ones. They are also much easier to exploit. Religion is a kind of opium that allows a nation to lull itself into wishful dreams and so forget the injustices that are being perpetrated against the people. Hence the close alliance between those two great political forces, the State and the Church. Both need the illusion that a kindly God rewards—in heaven if not on earth—all those who have not risen up against injustice, who have done their duty quietly and uncomplainingly. That is precisely why the honest assertion that God is a mere product of the human imagination is branded as the worst of all mortal sins.”
― Paul A.M. Dirac

“The aim of science is to make difficult things understandable in a simpler way; the aim of poetry is to state simple things in an incomprehensible way. The two are incompatible.”
― Paul A.M. Dirac

“Living is worthwhile if one can contribute in some small way to this endless chain of progress.”
― Paul A.M. Dirac

“If one is working from the point of view of getting beauty into one's equation, ... one is on a sure line of progress.”
― Paul A.M. Dirac

“When you ask what are electrons and protons I ought to answer that this question is not a profitable one to ask and does not really have a meaning. The important thing about electrons and protons is not what they are but how they behave, how they move. I can describe the situation by comparing it to the game of chess. In chess, we have various chessmen, kings, knights, pawns and so on. If you ask what chessman is, the answer would be that it is a piece of wood, or a piece of ivory, or perhaps just a sign written on paper, or anything whatever. It does not matter. Each chessman has a characteristic way of moving and this is all that matters about it. The whole game os chess follows from this way of moving the various chessmen.”
― Paul A.M. Dirac

“People who equate all the different kinds of human activity to money are taking too primitive a view of things.”
― Paul A.M. Dirac

“God is a mathematician of a very high order and He used advanced mathematics in constructing the universe.”
― Paul Dirac

“The mathematician plays a game in which he himself invents the rules while the physicist plays a game in which the rules are provided by nature, but as time goes on it becomes increasingly evident that the rules which the mathematician finds interesting are the same as those which nature has chosen”
― Paul A.M. Dirac

“If you are receptive and humble, mathematics will lead you by the hand.”
― Paul Dirac

“The successful development of science requires a proper balance to be maintained between the method of building up from observations and the method of deducing by pure reasoning from speculative assumptions.”
― Paul A.M. Dirac

“Mathematics is only a tool and one should learn to hold the physical ideas in one's mind without reference to the mathematical form.”
― Paul Dirac

“It seems to be one of the fundamental features of nature that fundamental physical laws are described in terms of a mathematical theory of great beauty and power, needing quite a high standard of mathematics for one to understand it. You may wonder: Why is nature constructed along these lines? One can only answer that our present knowledge seems to show that nature is so constructed. We simply have to accept it. One could perhaps describe the situation by saying that God is a mathematician of a very high order, and He used very advanced mathematics in constructing the universe. Our feeble attempts at mathematics enable us to understand a bit of the universe, and as we proceed to develop higher and higher mathematics we can hope to understand the universe better.”
― Paul A.M. Dirac

“Age is, of course, a fever chill
That every physicist must fear.
He's better dead than living still
When once he's past his thirtieth year.”
― Paul Dirac

“It seems clear that the present quantum mechanics is not in its final form. Some further changes will be needed, just about as drastic as the changes made in passing from Bohr's orbit theory to quantum mechanics. Some day a new quantum mechanics, a relativistic one, will be discovered, in which we will not have these infinities occurring at all. It might very well be that the new quantum mechanics will have determinism in the way that Einstein wanted.”
― Paul Dirac

“If you are receptive and humble, mathematics will lead you by the hand. Again and again, when I have been at a loss how to proceed, I have just had to wait until I have felt the mathematics led me by the hand. It has led me along an unexpected path, a path where new vistas open up, a path leading to new territory, where one can set up a base of operations, from which one can survey the surroundings and plan future progress.”
― Paul A.M. Dirac

“It is more important to have beauty in one’s equation than to have them fit experiment”
― Paul Dirac

“In the absence of experimental evidence, basic beliefs of theoretical physicists may initially have almost a religious flavor, guided by faith and aesthetics. Fortunately unlike religion, these beliefs soon face the hard test of experiment.”
― Paul A.M. Dirac

“A physical law must possess mathematical beauty”
― Paul Dirac

“The interpretation of quantum mechanics has been dealt with by many authors, and I do not want to discuss it here. I want to deal with more fundamental things.”
― Paul A.M. Dirac

“If we are honest — and scientists have to be — we must admit that religion is a jumble of false assertions, with no basis in reality. The very idea of God is a product of the human imagination. It is quite understandable why primitive people, who were so much more exposed to the overpowering forces of nature than we are today, should have personified these forces in fear and trembling. But nowadays, when we understand so many natural processes, we have no need for such solutions. I can’t for the life of me see how the postulate of an Almighty God helps us in any way.”
― Paul Dirac

“I never read. It prevents me from thinking.”
― Paul Dirac

“Nie potrafię zrozumieć, czemu marnujemy czas dyskutując o religii. O ile jesteśmy uczciwi, a naukowcy powinni być tacy, musimy przyznać, że religia jest zbieraniną fałszywych stwierdzeń, bez żadnych podstaw w rzeczywistości. Sama idea Boga, to wytwór ludzkiej wyobraźni. To zupełnie zrozumiałe, dlaczego pierwotni ludzie, którzy o wiele bardziej byli narażeni na łaskę i niełaskę sił przyrody, niż my dzisiaj, personifikowali te siły w strachu i z drżeniem. Ale dziś, gdy już zrozumieliśmy tak wiele naturalnych procesów w przyrodzie, nie mamy takiej potrzeby. Nie mogę dostrzec, za żadne skarby świata, jak Wszechmogący Bóg pomaga nam w jakikolwiek sposób. To, co widzę – że to założenie prowadzi do tak bezproduktywnych pytań – dlaczego Bóg pozwala na tak wiele nieszczęść i niesprawiedliwości, wyzysku biednych przez bogatych i wszystkich innych okropności. Mógł temu zapobiec. Jeśli religia jest ciągle nauczana, to bynajmniej nie z powodu, iżby jej idee wciąż nas przekonywały. Lecz po prostu dlatego, że niektórzy z nas chcą zapewnić spokój klas niższych. Spokojnymi ludźmi jest o wiele łatwiej rządzić niż krzykliwymi i niezadowolonymi. Jest też znacznie łatwiej ich eksploatować. Religia to rodzaj opium dla ludu, które pozwala uśpić ludzi w pobożnych marzeniach i skłonić aby zapomnieli o krzywdach, jakie są im wyrządzane. Stąd wynika sojusz owych dwu wielkich potęg politycznych, państwa i Kościoła. Państwo i Kościół potrzebują iluzji, że dobry Bóg nagrodzi ludzi w niebie, nie na ziemi – tych wszystkich którzy godzą się na niesprawiedliwości, którzy wypełniają swoje obowiązki cicho i bez narzekania. Dlatego właśnie uczciwe stwierdzenie, że Bóg jest tylko wytworem ludzkiej wyobraźni, nazywane jest przez Kościół najgorszym ze wszystkich grzechów śmiertelnych.”
― Paul Dirac

“The underlying physical laws necessary for the mathematical theory of a larger part of physics and the whole of chemistry are thus completely known.”
― Paul Dirac