In this work I have attempted to treat economy as a calculus of pleasure and pain, and have sketched out,almost irrespective of previous opinions, the form which the science,as it seems to me, must ultimately take.
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Preface To The First Edition, p. 4William 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
PLEASURE and pain are undoubtedly the ultimate objects of the calculus of economics. To satisfy our wants to the utmost with the least effort - to procure the greatest amount of what is desirable at the expense of the least that is undesirable - in other words, to maximize pleasure, is the problem of economics.
William Stanley Jevons
In general the position as regards all such new calculi is this - That one cannot accomplish by them anything that could not be accomplished without them. However, the advantage is, that, provided such a calculus corresponds to the inmost nature of frequent needs, anyone who masters it thoroughly is able - without the unconscious inspiration of genius which no one can command - to solve the respective problems, yea to solve them mechanically in complicated cases in which, without such aid, even genius becomes powerless. Such is the case with the invention of general algebra, with the differential calculus, and in a more limited region with Lagrange's calculus of variations, with my calculus of congruences, and with Mobius's calculus. Such conceptions unite, as it were, into an organic whole countless problems which otherwise would remain isolated and require for their separate solution more or less application of inventive genius.
Carl Friedrich Gauss
Fear is always in relation to something; it does not exist by itself. There is fear of what happened yesterday in relation to the possibility of its repetition tomorrow; there is always a fixed point from which relationship takes place. How does fear come into this? I had pain yesterday; there is the memory of it and I do not want it again tomorrow. Thinking about the pain of yesterday, thinking which involves the memory of yesterday’s pain, projects the fear of having pain again tomorrow. So it is thought that brings about fear. Thought breeds fear; thought also cultivates pleasure. To understand fear you must also understand pleasure — they are interrelated; without understanding one you cannot understand the other. This means that one cannot say ‘I must only have pleasure and no fear’; fear is the other side of the coin which is called pleasure. Thinking with the images of yesterday’s pleasure, thought imagines that you may not have that pleasure tomorrow; so thought engenders fear. Thought tries to sustain pleasure and thereby nourishes fear. Thought has separated itself as the analyzer and the thing to be analyzed; they are both parts of thought playing tricks upon itself. In doing all this it is refusing to examine the unconscious fears; it brings in time as a means of escaping fear and yet at the same time sustains fear.
Jiddu Krishnamurti
A person who feels pleasure in producing pain in someone else in a sexual relationship is also capable of enjoying as pleasure any pain which he may himself derive from sexual relations. A sadist is always at the same time a masochist.
Sigmund Freud
Jevons, William Stanley
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