Quotes by Physicists - Page 19

The year 2100 will see eugenics universally established. In past ages, the law governing the survival of the fittest roughly weeded out the less desirable strains. Then man's new sense of pity began to interfere with the ruthless workings of nature. As a result, we continue to keep alive and to breed the unfit. The only method compatible with our notions of civilization and the race is to prevent the breeding of the unfit by sterilization and the deliberate guidance of the mating instinct, Several European countries and a number of states of the American Union sterilize the criminal and the insane. This is not sufficient. The trend of opinion among eugenists is that we must make marriage more difficult. Certainly no one who is not a desirable parent should be permitted to produce progeny. A century from now it will no more occur to a normal person to mate with a person eugenically unfit than to marry a habitual criminal.
Nikola Tesla
I can live with doubt and uncertainty and not knowing. I think it's much more interesting to live not knowing than to have answers that might be wrong.
Richard Feynman
The really valuable thing in the pageant of human life seems to me not the political state, but the creative, sentient individual, the personality; it alone creates the noble and the sublime, while the herd as such remains dull in thought and dull in feeling.
Albert Einstein
t is generally recognized that women are better than men at languages, personal relations and multitasking, but less good at map-reading and spatial awareness. It is therefore not unreasonable to suppose that women might be less good at mathematics and physics. It is not politically correct to say such things....But it cannot be denied that there are differences between men and women. Of course, these are differences between the averages only. There are wide variations about the mean.
Stephen Hawking
To us investigators, the concept 'soul' is irrelevant and a matter for laughter.
Ernst Mach
This dog is mine," said those poor children; "that is my place in the sun." Here is the beginning and the image of the usurpation of all the earth.
Blaise Pascal
The catchers delight in the moment so frozen but soon discover that the nightingale expires, its clear flutelike song diminishes to silence, the trapped moment grows withered and without life.
Alan Lightman
I know not with what weapons World War III will be fought, but World War IV will be fought with sticks and stones.
Albert Einstein
A hundred times every day I remind myself that my inner and outer life depend on the labours of other men living and dead and that I must exert myself in order to give in the same measure as I have received.
Albert Einstein
Denis's love for Mattia had burned itself out, like a forgotten candle in an empty room, leaving behind a ravenous discontent.
Paolo Giordano
My final remark to young women and men going into experimental science is that they should pay little attention to the speculative physics ideas of my generation. After all, if my generation has any really good speculative ideas, we will be carrying these ideas out ourselves.
Martin L. Perl
If I can’t picture it, I can’t understand it.
Albert Einstein
Do not worry about your difficulties in Mathematics. I can assure you mine are still greater.
Albert Einstein
Certainly we can say that the pace of modern life, increased and supported by our technology in general and our personal electronics in particular, has resulted in a short attention span and an addiction to the influx of information. A mind so conditioned has little opportunity to think critically, and even less chance to experience life deeply by being in the present moment. A complex life with complicated activities, relationships and commitments implies a reflexive busy-ness that supplants true thinking and feeling with knee-jerk reactions. It is a life high in stress and light on substance, at least in the spiritually meaningful dimensions of being.
Arthur Rosenfeld
The doctrine of creation of the kind that the Abrahamic faiths profess is such that it encourages the expectation that there will be a deep order in the world, expressive of the Mind and Purpose of that world’s Creator. It also asserts that the character of this order has been freely chosen by God, since it was not determined beforehand by some kind of pre-existing blueprint (as, for example, Platonic thinking had supposed to be the case). As a consequence, the nature of cosmic order cannot be discovered just by taking thought, as if humans could themselves explore a noetic realm of rational constraint to whichthe Creator had had to submit, but the pattern of the world has to be discerned through the observations and experiments that are necessary in order to determine what form the divine choice has actually taken. What is needed, therefore, for successful science is the union of the mathematical expression of order with the empirical investigation of the actual properties of nature, a methodological synthesis of a kind that was pioneered with great skill and fruitfulness by Galileo.
John Polkinghorne
If I were not a physicist, I would probably be a musician. I often think in music. I live my daydreams in music. I see my life in terms of music.
Albert Einstein
The tragedy of this world is that no one is happy, whether stuck in a time of pain or of joy. The tragedy of this world is that everyone is alone. For a life in the past cannot be shared with the present. Each person who gets stuck in time gets stuck alone.
Alan Lightman
Redwing had read somewhere that one of his favourite writers, Ernest Hemingway, had been asked what was the best training for a novelist. He had said “an unhappy childhood.” Redwing had enjoyed a fine time growing up, but he wondered if this whole expedition was unfolding more like a novel, and would be blamed on one person, one character, the guy in charge: him. Maybe you got a happy childhood and then an unhappy adulthood, and that’s how novels worked.
Gregory Benford
Strange is our situation here upon earth. Each of us comes for a short visit, not knowing why, yet sometimes seeming to a divine purpose. From the standpoint of daily life, however, there is one thing we do know: That we are here for the sake of other men —above all for those upon whose smile and well-being our own happiness depends, for the countless unknown souls with whose fate we are connected by a bond of sympathy. Many times a day, I realize how much my outer and inner life is built upon the labors of people, both living and dead, and how earnestly I must exert myself in order to give in return as much as I have received and am still receiving.
Albert Einstein
But grace and effort are not opposites. Grace and earning are opposites.
Mark Buchanan
The owner of the means of production is in a position to purchase the labor power of the worker. By using the means of production, the worker produces new goods which become the property of the capitalist. The essential point about this process is the relation between what the worker produces and what he is paid, both measured in terms of real value. Insofar as the labor contract is "free," what the worker receives is determined not by the real value of the goods he produces, but by his minimum needs and by the capitalists' requirements for labor power in relation to the number of workers competing for jobs. It is important to understand that even in theory the payment of the worker is not determined by the value of his product.
Albert Einstein
I don't try to imagine a personal God; it suffices to stand in awe at the structure of the world, insofar as it allows our inadequate senses to appreciate it.
Albert Einstein
A question that sometimes drives me hazy: am I or are the others crazy?
Albert Einstein
You cannot teach a man anything, you can only help him find it within himself.
Galileo Galilei
Man is here for the sake of other men - above all for those upon whose smiles and well-being our own happiness depends.
Albert Einstein
I write down the three measurements which Lou and I agreed are central to knowing if the company is making money: net profit, ROI and cash flow.
Eliyahu M. Goldratt
Professor Smith has kindly submitted his book to me before publication. After reading it thoroughly and with intense interest I am glad to comply with his request to give him my impression.The work is a broadly conceived attempt to portray man's fear-induced animistic and mythic ideas with all their far-flung transformations and interrelations. It relates the impact of these phantasmagorias on human destiny and the causal relationships by which they have become crystallized into organized religion.This is a biologist speaking, whose scientific training has disciplined him in a grim objectivity rarely found in the pure historian. This objectivity has not, however, hindered him from emphasizing the boundless suffering which, in its end results, this mythic thought has brought upon man.Professor Smith envisages as a redeeming force, training in objective observation of all that is available for immediate perception and in the interpretation of facts without preconceived ideas. In his view, only if every individual strives for truth can humanity attain a happier future; the atavisms in each of us that stand in the way of a friendlier destiny can only thus be rendered ineffective.His historical picture closes with the end of the nineteenth century, and with good reason. By that time it seemed that the influence of these mythic, authoritatively anchored forces which can be denoted as religious, had been reduced to a tolerable level in spite of all the persisting inertia and hypocrisy.Even then, a new branch of mythic thought had already grown strong, one not religious in nature but no less perilous to mankind -- exaggerated nationalism. Half a century has shown that this new adversary is so strong that it places in question man's very survival. It is too early for the present-day historian to write about this problem, but it is to be hoped that one will survive who can undertake the task at a later date.
Albert Einstein
One, remember to look up at the stars and not down at your feet. Two, never give up work. Work gives you meaning and purpose and life is empty without it. Three, if you are lucky enough to find love, remember it is there and don't throw it away.
Stephen Hawking
There is also hope that even in these days of increasing specialization there is a unity in the human experience.
Allan McLeod Cormack
I'm getting old, thought Eileen Calder. Old and worn out and cynical. And being cynical is a lot worse than being old or worn out.
Charles Sheffield
I introduce the subject of fine structure with a mini-calendar of events. ...Winter 1914-15. Sommerfeld computes relativistic orbits for hydrogen-like atoms. Pashcen, aware of these studies, carefully investigates fine structures, ....January 6, 1916. Sommerfeld announces his fine structure formula, citing results to be published by Paschen in support of his answer.February 1916. Einstein to Sommerfeld: "A revelation!"March 1916. Bohr to Sommerfeld: "I do not believe ever to have read anything with more joy than your beautiful work."September 1916. Paschen publishes his work, acknowledging Sommerfeld's "indefatigable efforts.
Abraham Pais
I maintain that the cosmic religious feeling is the strongest and noblest motive for scientific research.
Albert Einstein
Science is the attempt to make the chaotic diversity of our sense-experience correspond to a logically uniform system of thought.
Albert Einstein
There is nothing you cannot turn into your favor.
Andrei Ludu
Assessing existence while failing to embrace the insights of modern physics would be like wrestling in the dark with an unknown opponent.
Brian Greene
Truth is ever to be found in the simplicity, and not in the multiplicity and confusion of things.
Isaac Newton
(Joan,1941) She wrote me a letter asking,"How can I read it?,Its so hard." I told her to start at the beginning and read as far as you can get until you're lost. Then start again at the beginning and keep working through until you can understand the whole book. And thats what she did
Richard Feynman
An expert is someone who knows some of the worst mistakes that can be made in his subject and how to avoid them.
Werner Heisenberg
Give me but a firm spot on which to stand, and I shall move the earth.
Archimedes
Of all things, I liked books best.
Nikola Tesla
Not only are there meaningless questions, but many of the problems with which the human intellect has tortured itself turn out to be only 'pseudo problems,' because they can be formulated only in terms of questions which are meaningless. Many of the traditional problems of philosophy, of religion, or of ethics, are of this character. Consider, for example, the problem of the freedom of the will. You maintain that you are free to take either the right- or the left-hand fork in the road. I defy you to set up a single objective criterion by which you can prove after you have made the turn that you might have made the other. The problem has no meaning in the sphere of objective activity; it only relates to my personal subjective feelings while making the decision.
Percy Williams Bridgman
I believe that we do not know anything for certain, but everything probably.
Christiaan Huygens
The essential fact which emerges ... is that the three smallest and most active reservoirs ( of carbon in the global carbon cycle), the atmosphere, the plants and the soil, are all of roughly the same size. This means that large human disturbance of any one of these reservoirs will have large effects on all three. We cannot hope either to understand or to manage the carbon in the atmosphere unless we understand and manage the trees and the soil too.
Freeman Dyson
If time travel is possible, where are the tourists from the future?
Stephen Hawking
Light brings us the news of the Universe.
William Henry Bragg
Time is an illusion.
Albert Einstein
Education is not the learning of facts, but the training of the mind to think
Albert Einstein
The existence of matter and energy in the universe did not require the violation of energy conservation at the assumed creation. In fact, the data strongly support the hypothesis that no such miracle occurred. If we regard such a miracle as predicted by the creator hypothesis, then the prediction is not confirmed.
Victor J. Stenger
Adversity introduces a man to himself.
Albert Einstein
If we ascribe the ejection of the proton to a Compton recoil from a quantum of 52 x 106 electron volts, then the nitrogen recoil atom arising by a similar process should have an energy not greater than about 400,000 volts, should produce not more than about 10,000 ions, and have a range in the air at N.T.P. of about 1-3mm. Actually, some of the recoil atoms in nitrogen produce at least 30,000 ions. In collaboration with Dr. Feather, I have observed the recoil atoms in an expansion chamber, and their range, estimated visually, was sometimes as much as 3mm. at N.T.P.These results, and others I have obtained in the course of the work, are very difficult to explain on the assumption that the radiation from beryllium is a quantum radiation, if energy and momentum are to be conserved in the collisions. The difficulties disappear, however, if it be assumed that the radiation consists of particles of mass 1 and charge 0, or neutrons. The capture of the a-particle by the Be9 nucleus may be supposed to result in the formation of a C12 nucleus and the emission of the neutron. From the energy relations of this process the velocity of the neutron emitted in the forward direction may well be about 3 x 109 cm. per sec. The collisions of this neutron with the atoms through which it passes give rise to the recoil atoms, and the observed energies of the recoil atoms are in fair agreement with this view. Moreover, I have observed that the protons ejected from hydrogen by the radiation emitted in the opposite direction to that of the exciting a-particle appear to have a much smaller range than those ejected by the forward radiation.This again receives a simple explanation on the neutron hypothesis.
James Chadwick
Try not to become a man of success but rather a man of value.
Albert Einstein
The progressive development of man is vitally dependent on invention. It is the most important product of his creative brain.
Nikola Tesla
The great object is to find the theory of the matter [of X-rays] before anyone else, for nearly every professor in Europe is now on the warpath.
Ernest Rutherford
The fact that no limits exist to the destructiveness of this weapon [the 'Super', i.e. the hydrogen bomb] makes its very existence and the knowledge of its construction a danger to humanity as a whole. It is necessarily an evil thing considered in any light. For these reasons, we believe it important for the President of the United States to tell the American public and the world what we think is wrong on fundamental ethical principles to initiate the development of such a weapon.
Enrico Fermi
I cannot imagine a God who rewards and punishes the objects of his creation, whose purposes are modeled after our own -- a God, in short, who is but a reflection of human frailty. Neither can I believe that the individual survives the death of his body, although feeble souls harbor such thoughts through fear or ridiculous egotisms.
Albert Einstein
Nothing happens until something moves.
Albert Einstein
Just as all things speak about God to those that know Him, and reveal Him to those that love Him, they also hide Him from all those that neither seek nor know Him.
Blaise Pascal
What is it that has called you so suddenly out of nothingness to enjoy for a brief while a spectacle which remains quite indifferent to you? The conditions for your existence are almost as old as the rocks. For thousands of years men have striven and suffered and begotten and women have brought forth in pain. A hundred years ago, perhaps, another man sat on this spot; like you he gazed with awe and yearning in his heart at the dying light of the glaciers. Like you he was begotten of man and born of woman. He felt pain and brief joy as you do. Was he someone else? Was it not you yourself? What is this Self of yours? What was the necessary condition for making the thing conceived this time into you, just you and not someone else? What clearly intelligible scientific meaning can this 'someone else' really have? If she who is now your mother had cohabited with someone else and had a son by him, and your father had done likewise, would you have come to be? Or were you living in them, and in your father's father... thousands of years ago? And even if this is so, why are you not your brother, why is your brother not you, why are you not one of your distant cousins? What justifies you in obstinately discovering this difference - the difference between you and someone else - when objectively what is there is the same?
Erwin Schrödinger
Moreover, the sciences are monuments devoted to the public good; each citizen owes to them a tribute proportional to his talents. While the great men, carried to the summit of the edifice, draw and put up the higher floors, the ordinary artists scattered in the lower floors, or hidden in the obscurity of the foundations, must only seek to improve what cleverer hands have created.
Charles-Augustin de Coulomb
The myth of quantum consciousness sits well with many whose egos have made it impossible for them to accept the insignificant place science perceives for humanity, as modern instruments probe the farthest reaches of space and time. ... quantum consciousness has about as much substance as the aether from which it is composed. Early in this century, quantum mechanics and Einstein’s relativity destroyed the notion of a holistic universe that had seemed within the realm of possibility in the century just past. First, Einstein did away with the aether, shattering the doctrine that we all move about inside a universal, cosmic fluid whose excitations connect us simultaneously to one another and to the rest of the universe. Second, Einstein and other physicists proved that matter and light were composed of particles, wiping away the notion of universal continuity. Atomic theory and quantum mechanics demonstrated that everything, even space and time, exists in discrete bits – quanta. To turn this around and say that twentieth century physics initiated some new holistic view of the universe is a complete misrepresentation of what actually took place. ... The myth of quantum consciousness should take its place along with gods, unicorns, and dragons as yet another product of the fantasies of people unwilling to accept what science, reason, and their own eyes tell them about the world.
Victor J. Stenger