Cyrnus, this city is a city still, but lo! her people are other men, who of old knew neither judgments nor laws, but wore goatskins to pieces about their sides, and had their pasture like deer without this city; and now they be good men, O son of Polypaus, and they that were high be now of low estate. Who can bear to behold such things? Yet they deceive one another even while they smile at one another, knowing the marks neither of the bad nor of the good.- Theognis of Megara (53-68)
Make not friends, son of Polypaus, with any of these thy townsmen from the heart and not for need; but let thy tongue give all men to think thou art their friend, while in act thou mingle with no man any sober business whatsoever: for thou shalt know the minds of the miserable sort, and that there's no trusting them in what they do, but they have come to love wiles and deceits and cozenings like men no longer sure of life.