Note 20 — Chapter XIII · PLATO

Acc. to the account in Phdr. 246 C, the soul suffers its downfall into the earthly existence if ὁ τῆς κάκης ἵππος, i.e. the ἐπιθυμία in the soul, tends towards the earth—247 B. It must, therefore, be the result of the preponderance of the appetitive impulses. This, however, can only happen if the λογιστικόν of the soul has become too weak to drive the soul-chariot any longer as its duty was. Hence the supporting wings, i.e. the νόησις, of the soul-horse fall off. It is thus a weakening of the cognitive part of the soul that causes its downfall into materiality (just as it is the measure of their capacity for knowledge that determines the character of the ἐνσωμάτωσις of the souls, and their return to the τόπος ὑπερουράνιος is equally determined by their recovery of the purer form of knowledge: 248 C ff., 249 AC). Thus it is not, as in Empedokles, a religio-moral transgression that leads to the incarnation of the souls, but a failure of intellect, an intellectual fall in sin.