"I desired to know why one person was ailing and his associate, eating at the same table, working in the same shop, at the same bench was not. Why? What difference was there in these two persons that caused one to have various diseases, while his partner escaped?"

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The problem is to find a form of association which will defend and protect with the whole common force the person and goods of each associate, and in which each, while uniting himself with all, may still obey himself alone, and remain as free as before.

— Jean-Jacques Rousseau