Quotes about inverse
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Rudolf Clausius photo
Cormac McCarthy photo
C. Northcote Parkinson photo

“The time spent on any item of the agenda will be in inverse proportion to the sum involved.”

C. Northcote Parkinson (1909–1993) British naval historian

Source: Parkinson's Law: and Other Studies in Administration. (1957), p. 24. : Popularly known as Parkinson's Law of Triviality).

“A theorist can explain any correlation, and its inverse.”

Quoted by Virginia Trimble, New Scientist, 3 Nov 2007 p. 97.

Max Horkheimer photo

“The inversion of external compulsion into the compulsion of conscience … produces the machine-like assiduity and pliable allegiance required by the new rationality.”

Max Horkheimer (1895–1973) German philosopher and sociologist

Source: "The End of Reason" (1941), p. 34.

Thomas Robert Malthus photo

“The moon is not kept in her orbit round the earth, nor the earth in her orbit round the sun, by a force that varies merely in the inverse ratio of the squares of the distances.”

Thomas Robert Malthus (1766–1834) British political economist

Source: An Essay on The Principle of Population (First Edition 1798, unrevised), Chapter XIII, paragraph 2, lines 19-22

J.M. Coetzee photo
Gregory Benford photo
Chris Hedges photo
E.M. Forster photo

“[Kelley argued that OS's judgment of an inverse relation between inducement magnitude and attitude inference] is probably associated with assumptions (unchecked in Bern’s work, as far as I know) that there is a distribution of opinion toward the task, and only the more favorable subjects complied in the $1 case and almost all, favorable or not, complied in the $20 case.”

Harold Kelley (1921–2003) American psychologist & academic

Source: "Attribution theory in social psychology." 1967, p. 226; as cited in: Yaacov Trope, "Inferential processes in the forced compliance situation: A Bayesian analysis." Journal of Experimental Social Psychology 10.1 (1974): 1-16.

William Stanley Jevons photo

“I shall endeavor to show that induction is really the inverse process of deduction.”

William Stanley Jevons (1835–1882) English economist and logician

Source: The Principles of Science: A Treatise on Logic and Scientific Method (1874) Vol. 1, p. 14

François Viète photo

“On symbolic use of equalities and proportions. Chapter II.
The analytical method accepts as proven the most famous [ as known from Euclid ] symbolic use of equalities and proportions that are found in items such as:
1. The whole is equal to the sum of its parts.
2. Quantities being equal to the same quantity have equality between themselves. [a = c & b = c => a = b]
3. If equal quantities are added to equal quantities the resulting sums are equal.
4. If equals are subtracted from equal quantities the remains are equal.
5. If equal equal amounts are multiplied by equal amounts the products are equal.
6. If equal amounts are divided by equal amounts, the quotients are equal.
7. If the quantities are in direct proportion so also are they are in inverse and alternate proportion. [a:b::c:d=>b:a::d:c & a:c::b:d]
8. If the quantities in the same proportion are added likewise to amounts in the same proportion, the sums are in proportion. [a:b::c:d => (a+c):(b+d)::c:d]
9. If the quantities in the same proportion are subtracted likewise from amounts in the same proportion, the differences are in proportion. [a:b::c:d => (a-c):(b-d)::c:d]
10. If proportional quantities are multiplied by proportional quantities the products are in proportion. [a:b::c:d & e:f::g:h => ae:bf::cg:dh]
11. If proportional quantities are divided by proportional quantities the quotients are in proportion. [a:b::c:d & e:f::g:h => a/e:b/f::c/g:d/h]
12. A common multiplier or divisor does not change an equality nor a proportion. [a:b::ka:kb & a:b::(a/k):(b/k)]
13. The product of different parts of the same number is equal to the product of the sum of these parts by the same number. [ka + kb = k(a+b)]
14. The result of successive multiplications or divisions of a magnitude by several others is the same regardless of the sequential order of quantities multiplied times or divided into that magnitude.
But the masterful symbolic use of equalities and proportions which the analyst may apply any time is the following:
15. If we have three or four magnitudes and the product of the extremes is equal to the product means, they are in proportion. [ad=bc => a:b::c:d OR ac=b2 => a:b::b:c]
And conversely
10. If we have three or four magnitudes and the first is to the second as the second or the third is to the last, the product of the extremes is equal to that of means. [a:b::c:d => ad=bc OR a:b::b:c => ac=b2]
We can call a proportion the establishment of an equality [equation] and an equality [equation] the resolution of a proportion.”

François Viète (1540–1603) French mathematician

From Frédéric Louis Ritter's French Tr. Introduction à l'art Analytique (1868) utilizing Google translate with reference to English translation in Jacob Klein, Greek Mathematical Thought and the Origin of Algebra (1968) Appendix
In artem analyticem Isagoge (1591)

Snježana Kordić photo
Albert Jay Nock photo

“And so we see that the term conservative has little value as a label; in fact, one might say that its label-value varies inversely with one's right to wear it.”

Albert Jay Nock (1870–1945) American journalist

A Little Conserva-tive (1936)
Context: Lucius Cary, Viscount Falkland, managed to make himself a most conspicuous example of every virtue and every grace of mind and manner; and this was the more remarkable because in the whole period through which he lived — the period leading up to the Civil War — the public affairs of England were an open playground for envy, hatred, malice, and all uncharitableness. … He could not see that there was any inconsistency in his attitude. He then went on to lay down a great general principle in the ever — memorable formula, "Mr. Speaker, when it is not necessary to change, it is necessary not to change."
Here we get on track of what conservatism is. We must carefully observe the strength of Falkland's language. He does not say that when it is not necessary to change, it is expedient or advisable not to change; he says it is necessary not to change. Very well, then, the differentiation of conservatism rests on the estimate of necessity in any given case. Thus conservatism is purely an ad hoc affair; its findings vary with conditions, and are good for this day and train only. Conservatism is not a body of opinion, it has no set platform or creed, and hence, strictly speaking, there is no such thing as a hundred-per-cent conservative group or party … Nor is conservatism an attitude of sentiment. Dickens's fine old unintelligent characters who "kept up the barrier, sir, against modern innovations" were not conservatives. They were sentimental obstructionists, probably also obscurantists, but not conservatives.
Nor yet is conservatism the antithesis of radicalism; the antithesis of radical is superficial. Falkland was a great radical; he was never for a moment caught by the superficial aspect of things. A person may be as radical as you please, and still may make an extremely conservative estimate of the force of necessity exhibited by a given set of conditions. A radical, for example, may think we should get on a great deal better if we had an entirely different system of government, and yet, at this time and under conditions now existing, he may take a strongly conservative view of the necessity for pitching out our system, neck and crop, and replacing it with another. He may think our fiscal system is iniquitous in theory and monstrous in practice, and be ever so sure he could propose a better one, but if on consideration of all the circumstances he finds that it is not necessary to change that system, he is capable of maintaining stoutly that it is necessary not to change it. The conservative is a person who considers very closely every chance, even the longest, of "throwing out the baby with the bath-water," as the German proverb puts it, and who determines his conduct accordingly. And so we see that the term conservative has little value as a label; in fact, one might say that its label-value varies inversely with one's right to wear it.... It covers so much that looks like mere capriciousness and inconsistency that one gets little positive good out of wearing it; and because of its elasticity it is so easily weaseled into an impostor-term or a term of reproach, or again into one of derision, as implying complete stagnation of mind, that it is likely to do one more harm than it is worth.

Gregory Benford photo

“Passion was inversely proportional to the amount of real information available.”

Source: Timescape (1980), Chapter 14 (p. 182, known as Benford's law of controversy)
Context: It was an example of what he thought of as the Law of Controversy: Passion was inversely proportional to the amount of real information available.

Ivan Illich photo

“The current search for new educational funnels must be reversed into the search for their institutional inverse: educational webs which heighten the opportunity for each one to transform each moment of his living into one of learning, sharing, and caring.”

Introduction (November 1970).
Deschooling Society (1971)
Context: Universal education through schooling is not feasible. It would be no more feasible if it were attempted by means of alternative institutions built on the style of present schools. Neither new attitudes of teachers toward their pupils nor the proliferation of educational hardware or software (in classroom or bedroom), nor finally the attempt to expand the pedagogue's responsibility until it engulfs his pupils' lifetimes will deliver universal education. The current search for new educational funnels must be reversed into the search for their institutional inverse: educational webs which heighten the opportunity for each one to transform each moment of his living into one of learning, sharing, and caring. We hope to contribute concepts needed by those who conduct such counterfoil research on education — and also to those who seek alternatives to other established service industries.

Richard Francis Burton photo

“He looks with impartial eye upon the endless variety of systems, maintained with equal confidence and self-sufficiency, by men of equal ability and honesty. He is weary of wandering over the world, and of finding every petty race wedded to its own opinions; claiming the monopoly of Truth; holding all others to be in error, and raising disputes whose violence, acerbity and virulence are in inverse ratio to the importance of the disputed matter.”

Richard Francis Burton (1821–1890) British explorer, geographer, translator, writer, soldier, orientalist, cartographer, ethnologist, spy, lin…

The Kasîdah of Hâjî Abdû El-Yezdî (1870), Note I : Hâjî Abdû, The Man
Context: He looks with impartial eye upon the endless variety of systems, maintained with equal confidence and self-sufficiency, by men of equal ability and honesty. He is weary of wandering over the world, and of finding every petty race wedded to its own opinions; claiming the monopoly of Truth; holding all others to be in error, and raising disputes whose violence, acerbity and virulence are in inverse ratio to the importance of the disputed matter. A peculiarly active and acute observation taught him that many of these jarring families, especially those of the same blood, are par in the intellectual processes of perception and reflection; that in the business of the visible working world they are confessedly by no means superior to one another; whereas in abstruse matters of mere Faith, not admitting direct and sensual evidence, one in a hundred will claim to be right, and immodestly charge the other ninety-nine with being wrong.
Thus he seeks to discover a system which will prove them all right, and all wrong; which will reconcile their differences; will unite past creeds; will account for the present, and will anticipate the future with a continuous and uninterrupted development; this, too, by a process, not negative and distinctive, but, on the contrary, intensely positive and constructive. I am not called upon to sit in the seat of judgment; but I may say that it would be singular if the attempt succeeded. Such a system would be all-comprehensive, because not limited by space, time, or race; its principle would be extensive as Matter itself, and, consequently, eternal. Meanwhile he satisfies himself, — the main point.

Helena Roerich photo

“Indeed, the most urgent, the most essential task is the education of children and youth... It is usually customary to confuse education with upbringing, but it is time to understand that school education, as it is established in most cases, not only does not contribute to the moral upbringing of youth, but acts inversely. In the Anglo-Saxon countries the schools are occupied mainly with the physical development of youth to the detriment of their mental development. But the excessive enthusiasm for sports leads to the coarsening of character, to mental degeneration, and to new diseases. True, not much better is the situation in home education under the conditions of the modern family. Therefore, it is time to pay most serious attention to the grave and derelict situation of children and youth from the moral point of view. Many lofty concepts are completely out of habitual use, having been replaced by everyday formulas for the easy achievement of the most vulgar comforts and status...The program of education is as broad as life itself. The possibilities for improvement are inexhaustible...We are on the eve of a new approach to and reconstruction of the entire school education... The quantity and speed of new discoveries in all domains of science grow so rapidly that soon contemporary school education will not be able to walk in step with and respond to the new attainments and demands of the time; new methods in the entire system of education will have to be devised...”

Helena Roerich (1879–1955) Russian philosopher

19 April 1938

Barbara McClintock photo
Jack McDevitt photo
Ernesto Che Guevara photo
Hans Freudenthal photo

“No mathematical idea has ever been published in the way it was discovered. Techniques have been developed and are used, if a problem has been solved, to turn the solution procedure upside down, or if it is a larger complex of statements and theories, to turn definitions into propositions, and propositions into definitions, the hot invention into icy beauty. This then if it has affected teaching matter, is the didactical inversion, which as it happens may be anti-didactical.”

Hans Freudenthal (1905–1990) Dutch mathematician

Rather than behaving anti-didactically, one should recognise that the learner is entitled to recapitulate in a fashion of mankind. Not in the trivial matter of an abridged version, but equally we cannot require the new generation to start at the point where their predecessors left off.
Source: The Concept and the Role of the Model in Mathematics and Natural and Social Sciences (1961), p. ix

Augustus De Morgan photo

“I have throughout introduced the Integral Calculus in connexion with the Differential Calculus. …Is it always proper to learn every branch of a direct subject before anything connected with the inverse relation is considered? If so why are not multiplication and involution in arithmetic made to follow addition and precede subtraction?”

Augustus De Morgan (1806–1871) British mathematician, philosopher and university teacher (1806-1871)

The portion of the Integral Calculus, which properly belongs to any given portion of the Differential Calculus increases its power a hundred-fold...
The Differential and Integral Calculus (1836)

Jan Assmann photo
John Allen Paulos photo
Frithjof Schuon photo

“Love of the sacred implies love of God, and inversely, the sacred is the perfume of Heaven.”

Frithjof Schuon (1907–1998) Swiss philosopher

[2016, La conscience de l’Absolu, Hozhoni, 60, 978-2-37241-020-5]
Spiritual life, Sense of the sacred

Daniel Dennett photo

“The utility of a thought experiment is inversely proportional to the size of its departures from reality.”

Daniel Dennett (1942) American philosopher

Intuition Pumps and Other Tools for Thinking (2013)