From "The Social Contract
IN Greece, all that the people had to do, it did for itself; it was constantly assembled in the public square. The Greeks lived in a mild climate; they had no natural greed; slaves did their work for them; their great concern was with liberty. Lacking the same advantages, how can you preserve the same rights? Your severer climates add to your needs; for half the year your public squares are uninhabitable; the flatness of your languages unfits them for being heard in the open air; you sacrifice more for profit than for liberty, and fear slavery less than poverty. (...)
As for you, modern peoples, you have no slaves, but you are slaves yourselves; you pay for their liberty with your own. It is in vain that you boast of this preference; I find in it more cowardice than humanity.
I do not mean by all this that it is necessary to have slaves, or that the right of slavery is legitimate: I am merely giving the reasons why modern peoples, believing themselves to be free, have representatives, while ancient peoples had none. In any case, the moment a people allows itself to be represented, it is no longer free: it no longer exists.
Cf. The Physical Setting of Athens, The Ecclesia of Athens
More by Rousseau
Reference address : https://www.ellopos.net/elpenor/greeks-us/rousseau_slavery.asp