The Republic by Plato Part 8 Page 41

To be sure.

There can be no doubt that the love of wealth and the spirit of moderation cannot exist together in citizens of the same state to any considerable extent; one or the other will be disregarded.

That is tolerably clear.

And in oligarchical States, from the general spread of carelessness and extravagance, men of good family have often been reduced to beggary?

Yes, often.

And still they remain in the city; there they are, ready to sting and fully armed, and some of them owe money, some have forfeited their citizenship; a third class are in both predicaments; and they hate and conspire against those who have got their property, and against everybody else, and are eager for revolution.