| 223 | If you deny that each thing always stays the same, you destroy the possibility of discussion [Plato] |
| 227 | You must always mean the same thing when you utter the same name [Plato] |
| 153 | It takes a person to understand, by using universals, and by using reason to create a unity out of sense-impressions [Plato] |
| 2142 | The plurality of beautiful things must belong to a single class, because they have a single particular character [Plato] |
| 649 | The acquisition of scientific knowledge is impossible without universals [Aristotle] |
| 1675 | Separate Forms aren't needed for logic, but universals (one holding of many) are essential [Aristotle] |
| 21710 | We know a universal in 'yellow differs from blue' or 'yellow resembles blue less than green does' [Russell] |
| 4030 | Russell claims that universals are needed to explain a priori knowledge (as their relations) [Russell, by Mellor/Oliver] |
| 4427 | Every sentence contains at least one word denoting a universal, so we need universals to know truth [Russell] |
| 3751 | Universals are acceptable if they are needed to make an accepted theory true [Quine, by Jacquette] |
| 4032 | The problem of universals is how many particulars can all be of the same 'type' [Armstrong] |
| 8539 | Universals are required to give a satisfactory account of the laws of nature [Armstrong] |
| 10729 | Universals explain resemblance and causal power [Armstrong, by Oliver] |
| 17669 | Realist regularity theories of laws need universals, to pick out the same phenomena [Armstrong] |
| 9485 | Universals concern how things are, and how they could be [Shoemaker, by Bird] |
| 8566 | We need universals for causation and laws of nature; the latter give them their identity [Mellor] |
| 15436 | Universals are meant to give an account of resemblance [Lewis] |
| 21961 | Physics aims to discover which universals actually exist [Lewis, by Moore,AW] |
| 7034 | Universals explain one-over-many relations, and similar qualities, and similar behaviour [Heil] |
| 8293 | Real universals are needed to explain laws of nature [Lowe] |
| 4449 | Evidence for universals can be found in language, communication, natural laws, classification and ideals [Moreland] |
| 4450 | The traditional problem of universals centres on the "One over Many", which is the unity of natural classes [Moreland] |
| 16260 | Existence of universals may just be decided by acceptance, or not, of second-order logic [Maudlin] |
| 7951 | Numerical sameness is explained by theories of identity, but what explains qualitative identity? [Macdonald,C] |
| 22134 | Thoughts are general, but the world isn't, so how can we think accurately? [Boulter] |