knowing and not knowing. And must not an animal be a lover of learning who determines what he likes and dislikes by the test of knowledge and ignorance?

Most assuredly.

And is not the love of learning the love of wisdom, which is philosophy?

They are the same, he replied.

And may we not say confidently of man also, that he who is likely to be gentle to his friends and acquaintances, must by nature be a lover of wisdom and knowledge?

That we may safely affirm.

Then he who is to be a really good and noble guardian of the State will require to unite in himself philosophy and spirit and swiftness and strength?

Undoubtedly.