Musical training is a more potent instrument than any other, because rhythm and harmony find their way into the inward places of the soul, on which they mightily fasten, imparting grace, and making the soul of him who is rightly educated graceful, or of him who is ill-educated ungraceful—Plato
Any musical innovation is full of danger to the whole state, and ought to be prohibited . . . when modes of music change, the fundamental laws of the state always change with them—Aristotle