Great Ideas

Definition

A statement of what a thing is, or of what a word means; a basic tool of logic and science.

Works to read

Passages

From the texts

  • Definition is a 'thesis' or a 'laying something down', since the arithmetician lays it down that to be a unit is to be quantitatively indivisible; but it is not a hypothesis, for to define what a unit is is not the same as to affirm its existence.

    — Aristotle, On Interpretation, Prior Analytics, Topics and Sophistical Refutations

  • For the original definition is always more of a definition, and not the later one; and in a series in which the first term has not the required character, the next has not it either.

    — Aristotle, Metaphysics

Verified quotations

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Passages are verified quotations from the library that use one of these words: definition, define, defined. Sentences under “From the texts” are copied word for word from the full texts in this library. Read each in its context on the work's page.

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