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Full Idea
With contraries it is not necessary if one exists for the other to exist too, for if everyone were well health would exist but not sickness, and if everything were white whiteness would exist but not black.
Gist of Idea
Both sides of contraries need not exist (as health without sickness, white without black)
Source
Aristotle (Categories [c.331 BCE], 14a06)
Book Ref
Aristotle: 'Categories and De Interpretatione', ed/tr. Ackrill,J.R. [OUP 1963], p.38
| 192 | Only one thing can be contrary to something [Plato] |
| 1697 | The contrary of good is bad, but the contrary of bad is either good or another evil [Aristotle] |
| 1698 | Both sides of contraries need not exist (as health without sickness, white without black) [Aristotle] |
| 24052 | From one thing alone we can infer its contrary [Aristotle] |
| 4333 | Contraries are by definition as far distant as possible from one another [Aristotle] |
| 1708 | In "Callias is just/not just/unjust", which of these are contraries? [Aristotle] |
| 608 | There is no middle ground in contradiction, but there is in contrariety [Aristotle] |
| 1684 | Two falsehoods can be contrary to one another [Aristotle] |
| 16854 | Contrary pairs entail contradictions; one member entails negation of the other [Lipton] |