A Quote by Willard Van Orman Quine
The three main medieval points of view regarding universals are designated by historians as realism, conceptualism, and nominalism. Essentially these same three doctrines reappear in twentieth-century surveys of the philosophy of mathematics under the new names logicism, intuitionism, and formalism.
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It has been said that the three great develpments in twentieth century science are relativity, quantum mechanics, and chaos. That strikes me the same as saying that the three great developments in twentith century engineering are the airplane, the computer, and the pop-top aluminum can. Chaos and fractals are not even twentieth century ideas: chaos was first observed by Poincare and fractals were familiar to Cantor a century ago, although neither man had the computer at his disposal to show the rest of the world the beauty he was seeing.
One measure of twentieth-century time is the supersonic three and three-quarter hours it takes the Concorde to fly from New York to Paris, gate to gate. Other measures come with the waits on the expressways and the runways.
An imbecile habit has arisen in modern controversy of saying that such and such a creed can be held in one age but cannot be held in another. Some dogma, we are told, was credible in the twelfth century, but is not credible in the twentieth. You might as well say that a certain philosophy can be believed on Mondays, but cannot be believed on Tuesdays. You might as well say of a view of the cosmos that it was suitable to half-past three, but not suitable to half-past four. What a man can believe depends upon his philosophy, not upon the clock or the century.
My main professional interest during the 1970s has been in the dramatic change of concepts and ideas that has occurred in physics during the first three decades of the century, and that is still being elaborated in our current theories of matter. The new concepts in physics have brought about a profound change in our world view; from the mechanistic conception of Descartes and Newton to a holistic and ecological view, a view which I have found to be similar to the views of mystics of all ages and traditions.
Like a stool which needs three legs to be stable, mathematics education needs three components: good problems, with many of them being multi-step ones, a lot of technical skill, and then a broader view which contains the abstract nature of mathematics and proofs. One does not get all of these at once, but a good mathematics program has them as goals and makes incremental steps toward them at all levels.
The public, as a whole, buys at the wrong time and sells at the wrong time. The average operator, when he sees two or three points profit, takes it; but, if a stock goes against him two or three points, he holds on waiting for the price to recover, with oftentimes, the result of seeing a loss of two or three points run into a loss of ten points.
Given that the nineteenth century was the century of Socialism, of Liberalism, and of Democracy, it does not necessarily follow that the twentieth century must also be a century of Socialism, Liberalism and Democracy: political doctrines pass, but humanity remains, and it may rather be expected that this will be a century of authority ... a century of Fascism. For if the nineteenth century was a century of individualism it may be expected that this will be the century of collectivism and hence the century of the State.
Democracy cannot survive where there is such uniformity that everyone wears exactly the same intellectual uniform or point of view. Democracy implies diversity of outlook, a variety of points of view on politics, economics, and world affairs. Hence the educational ideal is not uniformity but unity, for unity allows diversity of points of view regarding the good means to a good end.
The chief business of seventeenth-century philosophy was to reckon with seventeenth-century science... the chief business of twentieth-century philosophy is to reckon with twentieth-century history.
There are three great themes in science in the twentieth century : the atom, the computer, and the gene.
All three of the great waves of nineteenth- and early-twentieth-century European immigrants to America innovated.
The humanities and science are not in inherent conflict but have become separated in the twentieth century. Now their essential unity must be re-emphasized, so that twentieth-century multiplicity may become twentieth-century unity.
Well, when I came to Hollywood, there were three names really of Latin actors, three or four names, maybe five. There was Raul Julia, Edward James Olmos, Andy Garcia, Antonio Banderas, Jimmy Smits. Now there's a lot.
If you want to be a physicist, you must do three things-first, study mathematics, second, study more mathematics, and third, do the same.
There are three points of view to everything - mine, yours, and the truth.
You'd think experienced political professionals would know better than to place their trust in exit polls, notoriously inaccurate surveys that had John Kerry winning the 2004 election by five points when he actually lost by three.
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