Abstract
Alternatively, we might attend not to the different answers appropriate to different questions asked about the same entity, but to the different answers which result when, about different entities, the same question is asked repeatedly, the question "What is it?" What is Socrates? a man; what is a man? an animal; and so on, branch by branch up the Porphyrian tree, until we reach "substance." Each ultimate answer will signify a supreme and irreducible genus of entity, not a type of predicate, but a predicate, effecting a classification of things into their ultimate types. On the basis of such an account, Ross explains that although.