Note 11 — Chapter XIII · PLATO

The prius in the case of man is really the perception of his own mental activity in νόησις μετὰ λόγου as being a process essentially different from δόξα μετ’ αἰσθήσεως ἀλόγου. It is inference from the former alone that leads to the conclusion that the νοούμενα exist: Tim. 51 B–52 A. It is the Ideas that we grasp in abstract thought: αὐτὴ ἡ οὐσία ἧς λόγον δίδομεν καὶ ἐρωτῶντες καὶ ἀποκρινόμενοι, Phd. 78 D.