Plato: The Republic

10. BOOK X (continued)

Yes, that can hardly be.

But the soul which cannot be destroyed by an evil, whether inherent or external, must exist for ever, and if existing for ever, must be immortal?

Certainly.

That is the conclusion, I said; and, if a true conclusion, then the souls must always be the same, for if none be destroyed they will not diminish in number. Neither will they increase, for the increase of the immortal natures must come from something mortal, and all things would thus end in immortality.

Very true.

But this we cannot believe--reason will not allow us-- any more than we can believe the soul, in her truest nature, to be full of variety and difference and dissimilarity.

What do you mean? he said.

The soul, I said, being, as is now proven, immortal, must be the fairest of compositions and cannot be compounded of many elements?

Certainly not.

Her immortality is demonstrated by the previous argument, and there are many other proofs; but to see her as she really is, not as we now behold her, marred by communion with the body and other miseries, you must contemplate her with the eye of reason, in her original purity; and then her beauty will be revealed, and justice and injustice and all the things which we have described will be manifested more clearly. Thus far, we have spoken the truth concerning her as she appears at present, but we must remember also that we have seen her only in a condition which may be compared to that of the sea-god Glaucus, whose original image can hardly be discerned because his natural members are broken off and crushed and damaged by the waves in all sorts of ways, and incrustations have grown over them of seaweed and shells and stones, so that he is more like some monster than he is to his own natural form. And the soul which we behold is in a similar condition, disfigured by ten thousand ills. But not there, Glaucon, not there must we look.