The Republic by Plato Part 4 Page 55

I too, I replied, shall be extremely well satisfied.

Then faint not in pursuing the speculation, he said.

Must we not acknowledge, I said, that in each of us there are the same principles and habits which there are in the State; and that from the individual they pass into the State? — how else can they come there? Take the quality of passion or spirit; — it would be ridiculous to imagine that this quality, when found in States, is not derived from the individuals who are supposed to possess it, e.g. the Thracians, Scythians, and in general the northern nations; and the same may be said of the love of knowledge, which is the special characteristic of our part of the world, or of the love of money, which may, with equal truth, be attributed to the Phoenicians and Egyptians.