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The art of reasoning is nothing more than a language well arranged.
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We shall not … begin this logic by definitions, axioms, or principles; we shall begin by observing the lessons which nature gives us.
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But, after all, the sciences have made progress, because philosophers have applied themselves with more attention to observe, and have communicated to their language that precision and accuracy which they have employed in their observations: In correcting their language they reason better.
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It is not true that on an exchange of commodities we give value for value. On the contrary, each of the two contracting parties in every case, gives a less for a greater value. … If we really exchanged equal values, neither party could make a profit. And yet, they both gain, or ought to gain. Why? The value of a thing consists solely in its relation to our wants. What is more to the one is less to the other, and vice versa. … It is not to be assumed that we offer for sale articles required for our own consumption. … We wish to part with a useless thing, in order to get one that we need; we want to give less for more. … It was natural to think that, in an exchange, value was given for value, whenever each of the articles exchanged was of equal value with the same quantity of gold. … But there is another point to be considered in our calculation. The question is, whether we both exchange something superfluous for something necessary.
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Game, noun: Any unserious occupation designed for the relaxation of busy people and the distraction of idle ones. It's used to take people to whom we have nothing to say off our hands, and sometimes even ourselves.
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The tone in which an Englishman expresses anger would, in Italy, be only a mark of surprise.
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To the eye of God there are no numbers: seeing all things at one time, he counts nothing.
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Our ideas are transformed sensations.