Plato: The Republic

2. BOOK II (continued)

He will not be a good guardian who is wanting in either of these two qualities; and yet the combination of them appears to be impossible; and hence we must infer that to be a good guardian is impossible.

I am afraid that what you say is true, he replied.

Here feeling perplexed I began to think over what had preceded. My friend, I said, no wonder that we are in a perplexity; for we have lost sight of the image which we had before us.

What do you mean? he said.

I mean to say that there do exist natures gifted with those opposite qualities.

And where do you find them?

Many animals, I replied, furnish examples of them; our friend the dog is a very good one: you know that well-bred dogs are perfectly gentle to their familiars and acquaintances, and the reverse to strangers.

Yes, I know.

Then there is nothing impossible or out of the order of nature in our finding a guardian who has a similar combination of qualities?

Certainly not.

Would not he who is fitted to be a guardian, besides the spirited nature, need to have the qualities of a philosopher?

I do not apprehend your meaning.

The trait of which I am speaking, I replied, may be also seen in the dog, and is remarkable in the animal.

What trait?

Why, a dog, whenever he sees a stranger, is angry; when an acquaintance, he welcomes him, although the one has never done him any harm, nor the other any good. Did this never strike you as curious?

The matter never struck me before; but I quite recognise the truth of your remark.