Good question perhaps homework can provide lifes lessons. For example "Children today are tyrants. They contradict their parents, gobble their food, and tyrannize their teachers." But if they slow down long enough and listen they may indeed learn to be teachers themselves.

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"What you hear in a great jazz band is the sound of democracy. “The jazz band works best when participation is shaped by intelligent communication.”
Harmony happens whenever different parts get to form a whole by means of congruity, concord, symetry, consistency, conformity, correspondence, agreement, accord, unity, consonance…….