7 ideas
| 21753 | If we look at the world rationally, the world assumes a rational aspect [Hegel] |
| 21974 | The world seems rational to those who look at it rationally [Hegel] |
| 15642 | If kinds depend only on what can be observed, many underlying essences might produce the same kind [Eagle] |
| 15645 | Nominal essence are the observable properties of things [Eagle] |
| 15643 | Nominal essence mistakenly gives equal weight to all underlying properties that produce appearances [Eagle] |
| 9567 | Maths deals with quantities of physical significance, ignoring irrelevant features [Geroch] |
| 15641 | Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle] |