| 20896 | It is not possible to know what sort each thing is [Democritus] |
| 16654 | Our words and concepts don't always correspond to what is out there [William of Ockham] |
| 16608 | Ockham was an anti-realist about the categories [William of Ockham, by Pasnau] |
| 13436 | There are no gaps in the continuum of nature, and everything has something closely resembling it [Locke] |
| 22079 | Hegel said Kant's fixed categories actually vary with culture and era [Hegel, by Houlgate] |
| 7174 | Categories are not metaphysical truths, but inventions in the service of needs [Nietzsche] |
| 7175 | Philosophers find it particularly hard to shake off belief in necessary categories [Nietzsche] |
| 4484 | Nihilism results from valuing the world by the 'categories of reason', because that is fiction [Nietzsche] |
| 17654 | A world can be full of variety or not, depending on how we sort it [Goodman] |
| 11096 | Discourse generally departmentalizes itself to some degree [Quine] |
| 21907 | We don't want another new set of categories; we want a variety of flexible categories [Deleuze, by May] |
| 15730 | Extreme nominalists say all classification is arbitrary convention [Quinton] |
| 4574 | If some peoples do not have categories like time or cause, they can't be essential features of rationality [Cooper,DE] |
| 7020 | Concepts don't carve up the world, which has endless overlooked or ignored divisions [Heil] |
| 13115 | Ontological categories are like formal axioms, not unique and with necessary membership [Westerhoff] |
| 13119 | Categories merely systematise, and are not intrinsic to objects [Westerhoff] |
| 13135 | A thing's ontological category depends on what else exists, so it is contingent [Westerhoff] |
| 10495 | Continuous experience sometimes needs imposition of boundaries to create categories [Ellen] |
| 18565 | There may be ad hoc categories, such as the things to pack in your suitcase for a trip [Machery] |