Medicine
On the Doctrines of Hippocrates and Plato
“Ἀλλὰ κᾀκείνου τὸ συνεχὲς τῷ στέρνῳ διεσεσήπει, καὶ ἦν οὕτω σαφῶς θεάσασθαι τὴν καρδίαν…”
Nine books against Chrysippus on where the soul's ruling part resides, siding with Hippocrates and Plato; the first book has lost its beginning.