The Republic by Plato Part 4 Page 75

And so, after much tossing, we have reached land, and are fairly agreed that the same principles which exist in the State exist also in the individual, and that they are three in number.

Exactly.

Must we not then infer that the individual is wise in the same way, and in virtue of the same quality which makes the State wise?

Certainly.

Also that the same quality which constitutes courage in the State constitutes courage in the individual, and that both the State and the individual bear the same relation to all the other virtues?

Assuredly.

And the individual will be acknowledged by us to be just in the same way in which the State is just?