Albert Einstein

"Clarity about the aims and problems of socialism is of greatest significance in our age of transition. Since, under present circumstances, free and unhindered discussion of these problems has come under a powerful taboo."

"It is an irony of fate that myself have been the recipient of excessive admiration and reverence from my fellow-beings, through no fault or merit of my own."

"Production is carried on for profit, not for use. There is no provision that all those able and willing to work will always be in a position to find employment; an “army of unemployed” almost always exists. The worker is constantly in fear of losing his job. Unlimited competition leads to a huge waste of labor, and to that crippling of the social consciousness of individuals."

"Technological progress frequently results in more unemployment rather than in an easing of the burden of work for all. The profit motive, in conjunction with competition among capitalists, is responsible for an instability... which leads to increasingly severe depressions. Unlimited competition leads to a huge waste of labor, and to that crippling of the social consciousness of individuals. This crippling of individuals social consciousness, I consider the worst evil of capitalism. Our whole educational system suffers from this evil. An exaggerated competitive attitude is inculcated into the student, who is trained to worship acquisitive success as a preparation for his future career."

"There is no provision that all those able and willing to work will always be in a position to find employment; an “army of unemployed” almost always exists. The worker is constantly in fear of losing his job."

"Man ska inte buga för dumheten bara för att den är gammal."

"Great spirits have always encountered violent opposition from mediocre minds."

":2. From discord make harmony; and finally"

"What I mean when I suggest a correspondence between good science and good poetic overtones is perhaps illustrated by a sentence from The Development of Modern Physics, by Einstein and Infeld. Expounding the rudiments of relativity, these authors write: "A straight line is the simplest and most trivial example of a curve." The statement is a simple scientific one yet in the perfection of its simplicity and scientific accuracy it becomes, as well, a very beautiful poetic statement."

":3. In the middle of difficulty lies opportunity."

"The one man who was, during the last years, certainly by far Einstein's best friend, and in some ways strangely resembled him most, was Kurt Gödel, The great logician. They were very different in almost every personal way — Einstein gregarious, happy, full of laughter and common sense, and Gödel extremely solemn, very serious, quite solitary, and distrustful of common sense as a means of arriving at the truth. But they shared a fundamental quality: both went directly and wholeheartedly to the questions at the very center of things."

"This illusory sense of self (the ego) is what Albert Einstein, who had deep insights not only in to the reality of space and time but also into human nature, referred to as "an optical illusion of consciousness.""

"Einstein's theory of relativity has advanced our ideas of the structure of the cosmos a step further. It is as if a wall which separated us from Truth has collapsed. Wider expanses and greater depths are now exposed to the searching eye of knowledge, regions of which we had not even a presentiment. It has brought us much nearer to grasping the plan that underlies all physical happening."

":1. Out of clutter, find simplicity;"

"Einstein knew everything."

"He belonged to more causes than I did. I must have received a letter from him every other day asking for money. I always responded."

"It did not last: the Devil howling 'Ho! Let Einstein be!' restored the status quo."

"Einstein is also, and I think rightly, known as a man of very great goodwill and humanity. Indeed if I had to think of a single word for his attitude towards human problems, I would pick the Sanskrit word Ahimsa, not to hurt, harmlessness."

"I cannot really endorse Planck's philosophy, even if it is logically valid and even though I respect the human attitudes to which it gives rise. Einstein's conception is closer to mine. His God is somehow involved in the immutable laws of nature. Einstein has a feeling for the central order of things. He can detect it in the simplicity of natural laws. We may take it that he felt this simplicity very strongly and directly during his discovery of the theory of relativity. Admittedly, this is a far cry from the contents of religion. I don't believe Einstein is tied to any religious tradition, and I rather think the idea of a personal God is entirely foreign to him. But as far as he is concerned there is no split between science and religion: the central order is part of the subjective as well as the objective realm, and this strikes me as being a far better starting point."

"Einstein had a rare ability to recognize the core principles that account for the world we observe. His perceptions were never diverted by the many fascinating distractions that enshroud Nature's underlying reality. Common sense, often a source of comfort, can distract. Experimental data, always the ultimate authority, can distract. Einstein saw beyond common sense and, while he respected experimental data, he was not its slave. He saw Nature as it is."

"Einstein, Picasso, Joyce, gave us our keys; the nature of motion reached us from Proust as from the second-run movie; the Hippodrome girls went down into the eternal lake, Lindbergh had conquered time, Roosevelt had at last spoken openly to us of the demon of our house, and he had named it: fear."

"I had a long conversation with Einstein a week before he died, which is something that may be of interest historically. ... the only one I had with him took place at the end of my year at the Princeton Institute, April 1955 … It was literally a week before he died, and I was with him for over an hour and a half … I started out a bit nervous of course. I'd read that he had a hearty laugh and a simple sense of humor, so I thought I'd start out in the following way. Originally, of course, the very phrase was Einstein's own phrase for that idea. And he'd used the principle as the guiding light for constructing general relativity. But he later came to feel that the principle wasn't so important, and in the autobiographical notes which he wrote for that … he had said that he came to disown Mach's Principle. So knowing that, I went to see him and I said, "Professor Einstein, I've come to talk about Mach's PrincipIe and I've come to defend your former self … against your later self." And it worked: he said, "Ho, ho, ho, that is gut, Ja!" Like that, really laughed. So that put me a bit at my ease. So then I talked about my way of doing Mach's Principle and he talked about his work and his doubts about quantum theory and so on. It was a wonderful experience."

"In politics, it seems that Einstein was called naive for thoughts that we now understand to have been ahead of his time. Could the same have been true of his later science? For science, the question to be answered is the paradox of Einstein's failed last years. I would suggest that the resolution of the paradox is that Einstein's dissent from quantum mechanics and immersion in the search for a unified field theory were not failures but anticipations. After all, even if many string theorists would disagree with Einstein about the incompleteness of quantum mechanics, much of what goes on in string theory these days looks a lot like what Einstein was doing in his Princeton years, which was trying to find new mathematics that might extend general relativity to a unification of all the forces and particles in nature."

"It was Einstein who had introduced almost all the revolutionary ideas underlying quantum theory, and who saw first what these ideas meant. His ultimate rejection of quantum theory was akin to Dr. Frankenstein’s shunning of the monster he had originally created for the betterment of mankind. Had Einstein not done so, in all likelihood he would be seen as the father of the modern theory."

"I like quoting Einstein. Know why? Because nobody dares contradict you."

"Albert Einstein, who was admired as almost superhuman and whose fate it was to become one of the most famous people on the planet, never identified with the image the collective mind had created of him. He remained humble, egoless. In fact, he spoke of "a grotesque contradiction between what people consider to be my achievements and abilities and the reality of who I am and what I am capable of.""

"You're a very clever boy, Einstein, an extremely clever boy, but you have one great fault: you'll never let yourself be told anything."

"Einstein explained his theory to me every day, and on my arrival I was fully convinced that he understood it."

"After Riemann had made known his discoveries, mathematicians busied themselves with working out his system of geometrical ideas formally; chief among these were Christoffel, Ricci, and Levi-Civita. Riemann... clearly left the real development of his ideas in the hands of some subsequent scientist whose genius as a physicist could rise to equal flights with his own as a mathematician. After a lapse of seventy years this mission has been fulfilled by Einstein."

"His work revolved around three rules which apply to all science, our problems, and times:"

"The mathematical genius can only carry on from the point which mathematical knowledge within his culture has already reached. Thus if Einstein had been born into a primitive tribe which was unable to count beyond three, life-long application to mathematics probably would not have carried him beyond the development of a decimal system based on fingers and toes."

"Under Grossman's guidance, Einstein studied and learned tensor analysis. The two men actually published several papers together, but the work at this stage was still a kind of groping in the dark—a mind-tormenting search for the one equation out of hundreds that was the correct one. ...Interestingly, the correct equation was actually considered briefly, but rejected by Einstein because he came to the mistaken conclusion that it violated causality. Then a further mistake led to the abandonment of the principle of covariance."

"Einstein independently discovered Riemann's original program, to give a purely geometric explanation to the concept of "force." ...To Riemann, the bending and warping of space causes the appearance of a force. Thus forces do not really exist; what is actually happening is that space itself is being bent out of shape. The problem with Riemann's approach... was that he had no idea specifically how gravity or electricity and magnetism caused the warping of space. ...Here Einstein succeeded where Riemann failed."

"If light takes the path with the least time between two points, and light beams bend under the influence of gravity, then the shortest distance between two points is a curved line. Einstein was shocked by this conclusion: If light could be observed traveling in a curved line, it would mean that space itself is curved."

"He discovered a host of other basic results in theoretical physics and it has been pointed out more than once that if somebody asked: "Who is the greatest modern physicist after Einstein?" the answer would be: Einstein again. And why? Because, although the theory of relativity in itself would have established his fame forever, had somebody else discovered relativity, his other discoveries would still make him the second greatest physicist of his time."

"Like many scientists Einstein was politically rather naïve. He hated violence and war and could not understand why his own natural sweet reasonableness was not universal. Absolutely truthful himself, he tended to be credulous in political questions and was easily and often imposed on by unscrupulous individuals and groups. Indeed, his innate kindness of heart and loyalty to his race were often exploited especially in his later years when his signature to documents, no matter on what topic, was held up to give it special importance. As a theoretical physicist Einstein stands alone in this century and perhaps in any century. His brilliant originality, his fecund adventurous imagination, his uncompromising logic, and his clear exposition have probably never been equalled. As a man his simplicity and kindliness, his unpretentious interest in others and his sense of humour charmed all who knew him. A very great man has vanished."

"Einstein's supreme greatness was in transforming physical thinking from that of the culmination of classical physics about 1900 to that of quantum mechanics starting about 1925. ...far more than anyone else, he caused physicists to think in terms of probabilities. He began to do this in his early work in thermodynamics, and he brought such thinking to its first great fruition in 1905 in his work on Brownian movement and in his first work on radiation, in which he introduced the concept of light quanta or photons. Its second, even greater fruition was in his famous paper on the quantum theory of radiation in 1917. That paper illustrated methods that have been in use almost without change ever since, even though the majority of the users have no knowledge that it was Einstein who propounded them. It was in this paper that Einstein postulated the various transition possibilities between two states of a quantized system. ...quantum theory has existed ever since precisely for the purpose of evaluating these probabilities. In this paper of 1917 Einstein postulated in particular the process known as stimulated emission, and inferred the properties of this process. This is the process employed in the... light maser or laser."

"There once was a doctor with cool white hair. He was well known because he came up with some important ideas. He didn't grow the cool hair until after he was done figuring that stuff out, but by the time everyone realized how good his ideas were, he had grown the hair, so that's how everyone pictures him. He was so good at coming up with ideas that we use his name to mean "someone who's good at thinking." Two of his biggest ideas were about how space and time work. This thing you're reading right now explains those ideas using only the ten hundred words people use the most often. The doctor figured out the first idea while he was working in an office, and he figured out the second one ten years later, while he was working at a school. That second idea was a hundred years ago this year. (He also had a few other ideas that were just as important. People have spent a lot of time trying to figure out how he was so good at thinking.)"

"From a simple point of view, then, Einstein's equation can be written: tensor A = tensor B, where tensor A describes the curvature of space and tensor B describes the matter that causes the curvature. In practice, B can also contain terms describing an electromagnetic field since electromagnetic fields represent energy, and energy is just another form of mass. Einstein's dissatisfaction centered on tensor B."

"Summing up, we may say that there is hardly one among the great problems, in which modern physics is so rich, to which Einstein has not made an important contribution. That he may sometimes have missed the target in his speculations, as, for example, in his hypothesis of light quanta, cannot really be held too much against him, for it is not possible to introduce fundamentally new ideas, even in the most exact sciences, without occasionally taking risk."

"Einstein did not consider the concept of 'determinism' to be as fundamental as it is frequently held to be (as he told me emphatically several times), and he denied energetically that he had ever put up a postulate such as (your letter, para. 3): 'the sequence of such conditions must also be objective and real, that is, automatic, machine-like, deterministic'. In the same way he disputes that he uses as criterion for the inadmissibility of a theory the question: 'Is it rigorously deterministic?' Einstein's point of departure is 'realistic' rather than 'deterministic,' which means that his philosophical prejudice is a different one..."

"I tried to persuade him to give up his determinism, which amounted to the view that the world was a four-dimensional Parmenidean block universe in which change was a human illusion, or very nearly so. (He agreed that this had been his view, and while discussing it I called him "Parmenides".) I argued that if men, or other organisms, could experience change and genuine succession in time, then this was real. It could not be explained away by a theory of the successive rising into our consciousness of time slices which in some sense coexist; for this kind of "rising into consciousness" would have precisely the same character as that succession of changes which the theory tries to explain away. ... I tried to present to Einstein-Parmenides as strongly as I could my conviction that a clear stand must be made against any idealistic view of time. And I also tried to show that, though the idealistic view was compatible with both determinism and indeterminism, a clear stand should be made in favor of an "open" universe — one in which the future was in no sense contained in the past or the present, even though they do impose severe restrictions on it. I argued that we should not be swayed by our theories to give up realism (for which the strongest arguments were based on common sense), though I think that he was ready to admit, as I was, that we might be forced one day to give it up if very powerful arguments (of Gödel's type, say) were to be brought against it. I therefore argued that with regard to time, and also to indeterminism (that is, the incompleteness of physics), the situation was precisely similar to the situation with regard to realism. Appealing to his own way of expressing things in theological terms, I said: if God had wanted to put everything into the world from the beginning, He would have created a universe without change, without organisms and evolution, and without man and man's experience of change. But He seems to have thought that a live universe with events unexpected even by Himself would be more interesting than a dead one."

"In the last twenty years of his life, Einstein's continued challenging of quantum theory was often dismissed as his being out of touch with modern physics. He was indeed wrong in denying the reality of the "spooky action" he discovered to lurk in quantum theory. Its existence, now called "entanglement," has been demonstrated. Nevertheless, Einstein is today recognized as the theory's most prescient critic. His constant claim that the theory's weirdness must not be brushed aside is borne out by today's proliferation of wild interpretations of quantum theory."

"Einstein asked himself a question... how can the sun and the Earth "attract" each other without touching..? ...[H]e imagined that the sun and the Earth each modified the space and time that surrounded them, just as a body in water displaces the water... This modification of the structure of time influences in turn the movement of the bodies, causing them to "fall" toward one another. ...The Earth is a large mass and slows down time in its vicinity. ...If things fall, it is due to this slowing of time. ...Where time passes uniformly, in interplanetary space, things do not fall. ...[H]ere on ...our planet, the movement of things inclines naturally toward where time passes more slowly, as when we run ...into the sea and the resistance of the water on our legs makes us fall headfirst... [T]ime passes more slowly for your feet than it does for your head."

"Men like Einstein proclaim obvious truths about war but are not listened to. So long as Einstein is unintelligible, he is thought wise, but as soon as he says anything that people can understand, it is thought that his wisdom has departed from him."

"Oh, he was a lovely man, Einstein. Oh, lovely man. He had the most perfect simplicity and perfect modesty, and all his feelings were humane."

"This man is not challenging the fact of science; he is challenging the action [or axioms] of science. Not only is he challenging the action of science, but the action of science has surrendered to his challenge."

"It is true that many mathematicians and physicists do their best work when young. But in Einstein's later work we see something much more extreme than the usual falling off. It is as if Thelonious Monk or John Coltrane turned into an obscure twelve-tone composer. How did the greatest physicist since Newton turn into a failed player of mathematical games? All the biographers ask this question; none gives an answer that seems remotely plausible to me as a working scientist."

"When we finally got our hands on the paper, we quickly realized that Einstein had put his finger on the essence of the problem and had delineated when it has a solution, before the invention of the modern quantum theory. Moreover, Einstein wrote with great lucidity about the subject, so that it seemed as if he were speaking directly to us, a century later. There was nothing dated or quaint about the analysis. For the first time in a long while, I found myself thinking, “Wow, this man really was a genius.”"

"Einstein showed that the aether was unnecessary. However, he never said that the aether didn't exist. He merely said it was irrelevant. Thus, by Occam's razor, physicists don't refer to the aether any more."