That the one, then, in every class is a definite thing, and in no case is its nature just this, unity, is evident; but as in colours the one-itself which we must seek is one colour, so too in substance the one-itself is one substance.
10) Horrela, bada, agerian dago genero guztietan Bata nolabaiteko izaera bat dela, eta Bata Bera ez dela izaera horietako substantzia; aitzitik, koloreetan Bata Bera kolore batean bilatu behar den bezala, substantzietan ere substantzia bat bilatu behar da.