Best 9669 quotes in «science quotes» category

Who then understands the reciprocal flux and reflux of the infinitely great and the infinitely small, the echoing of causes in the abysses of being, and the avalanches of creation?

Who, of men, can tell That flowers would bloom, or that green fruit would swell To melting pulp, that fish would have bright mail, The earth its dower of river, wood, and vale, The meadows runnels, runnels pebble-stones, The seed its harvest, or the lute its tones, Tones ravishment, or ravishment its sweet, If human souls did never kiss and greet?

Who then can calculate the path of the molecule? how do we know that the creations of worlds are not determined by the fall of grains of sand?

Who would not have been laughed at if he had said in 1800 that metals could be extracted from their ores by electricity or that portraits could be drawn by chemistry.

Why are atoms so small? ... Many examples have been devised to bring this fact home to an audience, none of them more impressive than the one used by Lord Kelvin: Suppose that you could mark the molecules in a glass of water, then pour the contents of the glass into the ocean and stir the latter thoroughly so as to distribute the marked molecules uniformly throughout the seven seas; if you then took a glass of water anywhere out of the ocean, you would find in it about a hundred of your marked molecules.

Why are you so sure parallel lines exist? Believe nothing, merely because you have been told it, or because it is traditional, or because you have imagined it.

[W.H.R.] Rivers is the Rider Haggard of anthropology; I shall be the Conrad.

Why are the bones of great fishes, and oysters and corals and various other shells and sea-snails, found on the high tops of mountains that border the sea, in the same way in which they are found in the depths of the sea?

Why are there organized beings? Why is there something rather than nothing? Here again, I fully understand a scientist who refuses to ask it. He is welcome to tell me that the question does not make sense. Scientifically speaking, it does not. Metaphysically speaking, however, it does. Science can account for many things in the world; it may some day account for all that which the world of phenomena actually is. But why anything at all is, or exists, science knows not, precisely because it cannot even ask the question.

Why did not somebody teach me the constellations, and make me at home in the starry heavens, which are always overhead, and which I don't half know to this day?

Why does man regret, even though he may endeavour to banish any such regret, that he has followed the one natural impulse, rather than the other; and why does he further feel that he ought to regret his conduct? Man in this respect differs profoundly from the lower animals.

Why don't you light that candle ?

Why do they [Americans] quarrel, why do they hate Negroes, Indians, even Germans, why do they not have science and poetry commensurate with themselves, why are there so many frauds and so much nonsense? I cannot soon give a solution to these questions ... It was clear that in the United States there was a development not of the best, but of the middle and worst sides of European civilization; the notorious general voting, the tendency to politics... all the same as in Europe. A new dawn is not to be seen on this side of the ocean.

Why do some die and some live? The answer was clearly, that on the whole the best fitted live. From the effects of disease the most healthy escaped; from enemies, the strongest, swiftest, or the most cunning; from famine, the best hunters or those with the best digestion; and so on. Then it suddenly flashed upon me that this self-acting process would necessarily improve the race, because in every generation the inferior would inevitably be killed off and the superior would remain-that is, the fittest would survive.

Why do you think it is...', I asked Dr. Cook ... 'that brain surgery, above all else-even rocket science-gets singled out as the most challenging of human feats, the one demanding the utmost of human intelligence?' [Dr. Cook answered,] 'No margin for error.

Why is it so easy to acquire the solutions of past problems and so difficult to solve current ones

Why is geometry often described as cold and dry? One reason lies in its inability to describe the shape of a cloud, a mountain, a coastline or a tree.

Why is it that Serge Lange's Linear Algebra, published by no less a Verlag than Springer, ostentatiously displays the sale of a few thousand copies over a period of fifteen years, while the same title by Seymour Lipschutz in the The Schaum's Outlines will be considered a failure unless it brings in a steady annual income from the sale of a few hundred thousand copies in twenty-six languages?

Why is it that showers and even storms seem to come by chance, so that many people think it quite natural to pray for rain or fine weather, though they would consider it ridiculous to ask for an eclipse by prayer.

Why it is that animals, instead of developing in a simple and straightforward way, undergo in the course of their growth a series of complicated changes, during which they often acquire organs which have no function, and which, after remaining visible for a short time, disappear without leaving a trace ... To the Darwinian, the explanation of such facts is obvious. The stage when the tadpole breathes by gills is a repetition of the stage when the ancestors of the frog had not advanced in the scale of development beyond a fish.

Why should one say that the machine does not live? It breathes, for its breath forms the atmosphere of some towns.

Why should there be the method of science? There is not just one way to build a house, or even to grow tomatoes. We should not expect something as motley as the growth of knowledge to be strapped to one methodology.

Why, sir, there is every probability that you will soon be able to tax it! Said to William Gladstone, the Chancellor of the Exchequer, when he asked about the practical worth of electricity.

Widespread intellectual and moral docility may be convenient for leaders in the short term, but it is suicidal for nations in the long term. One of the criteria for national leadership should therefore be a talent for understanding, encouraging, and making constructive use of vigorous criticism.

Willis Rodney Whitney ... once compared scientific research to a bridge being constructed by a builder who was fascinated by the construction problems involved. Basic research, he suggested, is such a bridge built wherever it strikes the builder's fancy-wherever the construction problems seem to him to be most challenging. Applied research, on the other hand, is a bridge built where people are waiting to get across the river. The challenge to the builder's ingenuity and skill, Whitney pointed out, can be as great in one case as the other.

Will America lead...and reap the rewards? Or will we surrender that advantage to other countries with clearer vision?

William Henry Flower the Anglican too praised evolution as a cleansing solvent, dissolving the dross which had 'encrusted' Christianity 'in the days of ignorance and superstition'.

Will none wipe the sneer off the face of the cosmos?

With a thousand joys I would accept a nonacademic job for which industriousness, accuracy, loyalty, and such are sufficient without specialized knowledge, and which would give a comfortable living and sufficient leisure, in order to sacrifice to my gods [mathematical research]. For example, I hope to get the editting of the census, the birth and death lists in local districts, not as a job, but for my pleasure and satisfaction.

With a metric you can really go to town, otherwise it is just abstract nonsense.

With crystals we are in a situation similar to an attempt to investigate an optical grating merely from the spectra it produces... But a knowledge of the positions and intensities of the spectra does not suffice for the determination of the structure. The phases with which the diffracted waves vibrate relative to one another enter in an essential way. To determine a crystal structure on the atomic scale, one must know the phase differences between the different interference spots on the photographic plate, and this task may certainly prove to be rather difficult.

With every throb of the climatic pulse which we have felt in Central Asia,, the centre of civilisation has moved this way and that. Each throb has sent pain and decay to the lands whose day was done, life and vigour to those whose day was yet to be.

Within a hundred years of physical and chemical science, men will know what the atom is. It is my belief when science reaches this stage, God will come down to earth with His big ring of keys and will say to humanity, 'Gentlemen, it is closing time.'

With increasing distance, our knowledge fades, and fades rapidly. Eventually, we reach the dim boundary-the utmost limits of our telescopes. There, we measure shadows, and we search among ghostly errors of measurement for landmarks that are scarcely more substantial. The search will continue. Not until the empirical resources are exhausted, need we pass on to the dreamy realms of speculation.

With all reserve we advance the view that a supernova represents the transition of an ordinary star into a neutron star consisting mainly of neutrons. Such a star may possess a very small radius and an extremely high density. As neutrons can be packed much more closely than ordinary nuclei and electrons, the gravitational packing energy in a cold neutron star may become very large, and under certain conditions may far exceed the ordinary nuclear packing fractions.

With full responsibility for my words as a professional biologist, I do not hesitate to say that all existing and genuine knowledge about the way in which the physical characteristics of human communities are related to their cultural capabilities can be written on the back of a postage stamp.

Within an atom there can be a billion kingdoms, endless. But all of them are bound by the cycle of birth and death. They all come into being for a while and then vanish.

Without a commitment to science and rationality in its proper domain, there can be no solution to the problems that engulf us. Still, the Yahoos never rest.

Without analysis, no synthesis.

With old inflation riding the headlines, I have read till I am bleary-eyed, and I can't get head from tails of the whole thing. ... Now we are living in an age of explanations-and plenty of 'em, too-but no two things that's been done to us have been explained twice the same way, by even the same man. It's and age of in one ear and out the other.

Without any doubt, the regularity which astronomy shows us in the movements of the comets takes place in all phenomena. The trajectory of a simple molecule of air or vapour is regulated in a manner as certain as that of the planetary orbits; the only difference between them is that which is contributed by our ignorance. Probability is relative in part to this ignorance, and in part to our knowledge.

Without deductive logic science would be entirely useless. It is merely a barren game to ascend from the particular to the general, unless afterwards we can reverse the process and descend from the general to the particular, ascending and descending like angels on Jacob's ladder.

Without initiation into the scientific spirit one is not in possession of the best tools which humanity has so far devised for effectively directed reflection. One in that case not merely conducts inquiry and learning without the use of the best instruments, but fails to understand the full meaning of knowledge.

Without theory, practice is but routine born of habit. Theory alone can bring forth and develop the spirit of invention. ... [Do not] share the opinion of those narrow minds who disdain everything in science which has not an immediate application. ... A theoretical discovery has but the merit of its existence: it awakens hope, and that is all. But let it be cultivated, let it grow, and you will see what it will become.

With randomness it is very unlikely to be embarrassed, but even if you get embarrassed, you can't replicate it.

With respect to those points, on which the declaration of Scripture is positive and decisive, as, for instance, in asserting the low antiquity of the human race; the evidence of all facts that have yet been established in Geology coincides with the records of Sacred History and Profane Tradition to confirm the conclusion that the existence of mankind can on no account be supposed to have taken its beginning before that time which is assigned to it in the Mosaic writings.

With science fiction I think we are preparing ourselves for contact with them, whoever they may be.

With so many scientific achievements we know so little of where we came from and where we are going. But we know even less of the most important discovery of all – Love. Only love can accept our differences as we journey through life. And only love can allow space for our growth.

With the ministry's motto 'Research on a Shoestring' emblazoned on his coat of arms, he has to struggle with a treasury more interested in surtax relief than national survival. [Responding to an earlier statement by British Science Minister, Lord Hailsham, that British scientists were being recruited by the U.S.]

Women and egoistic artists entertain a feeling towards science that is something composed of envy and sentimentality.