8 ideas
| 16751 | Unity by aggregation, order, inherence, composition, and simplicity [Conimbricense, by Pasnau] |
| 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] |
| 16720 | Secondary qualities come from temperaments and proportions of primary qualities [Conimbricense] |
| 1748 | Archelaus was the first person to say that the universe is boundless [Archelaus, by Diog. Laertius] |
| 15641 | Kinds are fixed by the essential properties of things - the properties that make it that kind of thing [Eagle] |
| 5989 | Archelaus said life began in a primeval slime [Archelaus, by Schofield] |