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Definition and stakes

Portrait of John Stuart Mill John Stuart Mill,  A System of Logic, Ratiocinative and Inductive…

“ Our idea of a point, I apprehend to be simply our idea of the minimum visibile, the smallest portion of surface which we can see. A line, as defined by geometers, is wholly inconceivable. We can reason about a line as if it had no breadth; because we have a power, which is the foundation of all the control we can exercise over the operations of our minds; the power, when a perception is present to our senses, or a conception to our intellects, of attending to a part only of that perception or conception, instead of the whole. ”
Source: Gutenberg

Portrait of James Mill James Mill,  Analysis of the Phenomena of the Human Mind

“ As we have occasion to speak of things; animals, vegetables, minerals; so we have occasion to speak of the marks, which we are under the necessity of using, in order to record or to communicate our thoughts respecting them. We cannot record or communicate our thoughts respecting names, as man, tree, horse, to walk, to fly, to eat, to converse, without marks for them. We proceed in the case of names, as we do in other cases. We form them into classes, some more, some less, comprehensive, and give a name to each. ”
Source: Gutenberg

Portrait of William Dwight Whitney William Dwight Whitney,  Logical Consistency in Views of Language (1880)

“ But a structural value is to be seen also even in the vocabulary of a language—in the way in which, for the purposes of material as well as formal expression, the objects of thought are viewed and classified and selected: how, for example, the colors are distinguished and named, or the kingdoms and classes and genera of natural existences, or the parts and qualities of man, or numbers and their combinations ”
Source: Wikisource

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