Quote

A spade may be made of any size, and if the same number of strokes be made in the hour, the requisite exertion will vary nearly as the cube of the length of the blade.

William Stanley Jevons

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William Stanley Jevons
Age: 46 †
Born: 1835
Born: September 1
Died: 1882
Died: August 13
Economist
Philosopher
Photographer
Statistician
City of Liverpool
Jevons
William Stanley
Number
Exertion
Numbers
Blades
Hours
Vary
Spade
May
Strokes
Cube
Made
Length
Spades
Nearly
Cubes
Size
Requisite
Hour
Blade

More quotes by William Stanley Jevons

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In short, I do not write for mathematicians, nor as a mathematician, but as an economist wishing to convince other economists that their science can only be satisfactorily treated on an explicitly mathematical basis.
William Stanley Jevons
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Fertility of imagination and abundance of guesses at truth are among the first requisites of discovery but the erroneous guesses must almost of necessity be many times as numerous as those which prove well founded.
William Stanley Jevons
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Over-production is not possible in all branches of industry at once, but it is possible in some as compared to others.
William Stanley Jevons
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The whole value of science consists in the power which it confers upon us of applying to one object the knowledge acquired from like objects and it is only so far, therefore, as we can discover and register resemblances that we can turn our observations to account.
William Stanley Jevons
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Science arises from the discovery of Identity amid Diversity.
William Stanley Jevons
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I protest against deference to any man, whether John Stuart Mill, or Adam Smith, or Aristotle, being allowed to check inquiry. Our science has become far too much a stagnant one, in which opinions rather than experience and reason are appealed to.
William Stanley Jevons
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Logic should no longer be considered an elegant and learned accomplishment it should take its place as an indispensable study for every well-informed person.
William Stanley Jevons
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There are a multitude of allied branches of knowledge connected with mans condition the relation of these to political economy is analogous to the connexion of mechanics, astronomy, optics, sound, heat, and every other branch more or less of physical science, with pure mathematics.
William Stanley Jevons
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we often observe that there is abundance of capital to be had at low rates of interest, while there are also large numbers of artisans starving for want of employment.
William Stanley Jevons
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The theory which follows is entirely based on a calculus of pleasure and pain and the object of economics is to maximize happiness by purchasing pleasure, as it were, at the lowest cost of pain.
William Stanley Jevons
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Capital simply allows us to expend labour in advance.
William Stanley Jevons
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As there are so many who talk prose without knowing it, or, again, who syllogize without having the least idea what a syllogism is, so economists have long been mathematicians without being aware of the fact.
William Stanley Jevons
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The child which overbalances itself in learning to walk is experimenting on the law of gravity.
William Stanley Jevons
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It isrequisite from time to time to remind one generation of the experience which led a former generation to important legislative actions.
William Stanley Jevons
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It is clear that economics, if it is to be a science at all, must be a mathematical science.
William Stanley Jevons
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There is no such thing as absolute cost of labour it is all a matter of comparison. Every one gets the most which he can for his exertions some can get little or nothing, because they have not sufficient strength, knowledge or ingenuity others get much, because they have, comparatively speaking, a monopoly of certain powers.
William Stanley Jevons
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Economists can never be free of from difficulties unless they will distinguish between a theory and the application of a theory.
William Stanley Jevons
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One pound invested for five years gives the same result as five pounds invested for one year, the product being five pound years.
William Stanley Jevons
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The whole result of continued labour is not often consumed and enjoyed in a moment the result generally lasts for a certain length of time. We must then conceive the capital as being progressively uninvested.
William Stanley Jevons
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Repeated reflection and inquiry have led me to the somewhat novel opinion, that value depends entirely upon utility.
William Stanley Jevons