Problems for Thomists: The Problem of Species

accidental classes according answer antecedent principles Aristotle and St brute common genus common matter composite substance concepts concerning constituted contingent accidents contrariety contrary degree determinate discussion distinguish diversity elements and mixtures essence essential exist fact five species formal genera Hence hylomorphism inanimate individual infima species intellect kinds knowledge living things Maritain metaphysical mixed body modes Mortimer Adler namely natural species nominal definitions number of species objection order of species Origin of Species perfect philosophy of nature plant and animal possess Posterior Analytics powers problem of species proper accidents properties question quiddity races Racial real definitions Reply Obj respect scientific scientific classification second position sense sensitive signate matter signify soul species of substance specific difference specific nature sub-species substantial form substantial species Summa Contra Gentiles Summa Theologica supra systematic species texts theory Thomas Thomas says Thomists tion types univocal whereas