Book 8
1340b
for instance the mode called Mixolydian, and to others in a softer state of mind, but in a midway state and with the greatest composure to another, as the Dorian mode alone of tunes seems to act, while the Phrygian makes men enthusiastic; for these things are well stated by those who have studied this form of education, as they derive the evidence for their theories from the actual facts of experience. And the same holds good about the rhythms also, for some have a more stable and others a more emotional character, and of the latter some are more vulgar in their emotional effects and others more liberal. From these considerations therefore it is plain that music has the power of producing a certain effect on the moral character of the soul, and if it has the power to do this, it is clear that the young must be directed to music and must be educated in it. Also education in music is well adapted to the youthful nature; for the young owing to their youth cannot endure any thing not sweetened by pleasure, and music is by nature a thing that has a pleasant sweetness. And we seem to have a certain affinity with tunes and rhythms; owing to which many wise men say either that the soul is a harmony or that it has harmony.The former doctrine is Pythagorean, the latter is stated by Plat. Phaedo 93.
