19. The main argument of the Phaedo is derived from the existence of

eternal ideas of which the soul is a partaker; the other argument of the alternation of opposites is replaced by this. And there have not been wanting philosophers of the idealist school who have imagined that the doctrine of the immortality of the soul is a theory of knowledge, and that in what has preceded Plato is accommodating himself to the popular belief. Such a view can only be elicited from the Phaedo by what may be termed the transcendental method of interpretation, and is obviously inconsistent with the Gorgias and the Republic. Those who maintain it are immediately compelled to renounce the shadow which they have grasped, as a play of words only. But the truth is, that Plato in his argument for the immortality of the soul has collected many elements of proof or persuasion, ethical and mythological as well as dialectical, which are not easily to be reconciled with one another; and he is as much in earnest about his doctrine of retribution, which is repeated in all his more ethical writings, as about his theory of knowledge. And while we may fairly translate the dialectical into the language of Hegel, and the religious and mythological into the language of Dante or Bunyan, the ethical speaks to us still in the same voice, and appeals to a common feeling.