Instructive Quotes
I am particularly fond of [Emmanuel Mendes da Costa's] Natural History of Fossils because this treatise, more than any other work written in English, records a short episode expressing one of the grand false starts in the history of natural science-and nothing can be quite so informative and instructive as a juicy mistake.
Stephen Jay Gould
Professor Eddington has recently remarked that 'The law that entropy always increases - the second law of thermodynamics - holds, I think, the supreme position among the laws of nature'. It is not a little instructive that so similar a law [the fundamental theorem of natural selection] should hold the supreme position among the biological sciences.
Ronald Fisher
One cannot demand of a scholar that he show himself a scholar everywhere in society, but the whole tenor of his behavior must none the less betray the thinker, he must always be instructive, his way of judging a thing must even in the smallest matters be such that people can see what it will amount to when, quietly and self-collected, he puts this power to scholarly use.
Georg Christoph Lichtenberg
I reproach myself for a gross error. But I would reproach myself more if I had persisted in an error after observations revealed it clearly to be that. I made a deal of money in the late 1940s on the bull side, ignoring Satchel Paige's advice to Lot's wife, "Never look back.” Rather I would advocate Samuelson's Law: "Always look back. You may learn something from your residuals. Usually one's forecasts are not so good as one remembers them; the difference may be instructive.” The dictum "If you must forecast, forecast often,” is neither a joke nor a confession of impotence. It is a recognition of the primacy of brute fact over pretty theory. That part of the future that cannot be related to the present's past is precisely what science cannot hope to capture. Fortunately, there is plenty of work for science to do, plenty of scientific tasks not yet done.
Paul Samuelson
There is one quality I find in all the artists I admire most – men like Masaccio, Michelangelo, Rembrandt, Cézanne. I mean a disturbing element, a distortion, giving evidence of a struggle of some sort... Great Art is not Perfect. Here the disturbing element comes in. It is instructive to know that Rembrandt copied Mantegna, whose art is the extreme opposite of his own. Why did he do so? Because he was conscious that his own art lacked the classical element. He was aware of the opposite, and that makes him greater.
Henry Moore
It is also instructive to see for oneself what Eaton's purported "eighty” cases are, on pp. 128-132 of his book. These turn out not to concern individual places of worship, but campaigns of destruction affecting whole cities with numerous temples at once. Among the items on Eaton's list, we find "Delhi” under Mohammed Ghori's onslaught, 1193, or "Benares” under the Ghurid conquest, 1194, and again under Aurangzeb's temple-destruction campaign, 1669. On each of these "three” occasions, literally hundreds of temples were sacked. In the case of Delhi, we all know how the single Quwwat-ul-Islam mosque replaced 27 temples, incorporating their rubble.
Koenraad Elst
Little by little his conversation, always instructive and animated, gave a special direction to my tastes, which would have led me by preference towards letters. I resolved to complete my scientific studies and followed the courses in advanced mathematics given by M. [Jean Guillaume] Gamier. It was at the same time agreed by us that, in order to relieve him in his work, I should give some of the other courses with which he was charged. I thus found myself his pupil and his colleague.
Adolphe Quetelet
As nations are among the largest and the most complete divisions into which society is formed, the grandest aggregations of organized human power; as they raise to observation and distinction the world's greatest men, and call into requisition the highest order of talent and ability for their guidance, preservation and success, they are ever among the most attractive, instructive and useful subjects of thought, to those just entering upon the duties and activities of life.
Frederick Douglass
Ah, the immortal ocean.
Consider the instructive metaphor: every conceivable terror dwells in her depths; she receives all wreckage, refuse, corruption of every kind, she pulls down into her depths human calamity indescribable; but none of this is any consideration to the sea. Let the screaming mortal passengers fight for room in the lifeboats, as the wreck belches flame and settles below the extinguishing wave; next morning she'll still be beautiful and serene, her combers no less white, her distances as blue, her seabirds no less graceful as they wheel in the pure air. What perfection, to be so heartless. An inspiration to any lesser immortal.
Kage Baker
We are sure to displease when we speak too long and too often of one subject, and when we try to turn the conversation upon subjects that we think more instructive than others, we should enter indifferently upon every subject that is agreeable to others, stopping where they wish, and avoiding all they do not agree with.
François de La Rochefoucauld