aristotle

The city is a political partnership that comes into being for purposes of self-sufficiency but exists primarily for the sake of living well. Man is by nature a political animal, because he has the ability to communicate and to dialogue and about justice and the good. The city is prior to the individual. Natural slaves are those who perceive reason but do not have it. It is mutually beneficial that such people be ruled. There …

…the young will be soldiers and the old will rule. All the laboring classes will be slaves. Education should be common for all citizens, and habituate the children to virtue. Education should consist of letters, gymnastics, music and drawing. Music is important because it is a noble means of using leisure time and through its harmony it makes the student appreciate the harmony of the soul in which reason rules the spirit and the appetites.