Note 47 — Chapter II · ARISTOTELIAN CANON.

Octavianus Ferrarius observes, in his treatise De Sermonibus Exotericis (Venet. 1575), p. 24: “Quod si Dialecticus et Rhetor inter se mutant, ut aiunt, ita ut Dialecticus Rhetorem et Rhetor Dialecticum vicissim induat — de his ipsis veteribus Dialecticis minime nobis dubitandum est, quin iidem dialectice simul et rhetorice loqui in utramque partem potuerint. Nec valde mirum debet hoc videri; libros enim exotericos prope solos habuerunt: qui cum scripti essent (ut posterius planum faciam) dialectico more, illorum lectio cum libris peperit philosophos congruentes” — Ferrari adverts well to the distinction between the philosopher and the dialectician (sensu Aristotelico), handling often the same subjects, but in a different way: between the οἰκεῖαι ἀρχαί, upon which didactic method rested, and the δόξαι or diverse opinions, each countenanced by more or less authority, from which dialectic took its departure (pp. 36, 86, 89).