…the Poet did feign that Orpheus drew trees, stones, and floods, since naught so stockish, hard and full of rage, but music for the time doth change his nature.

The man that hath no music in himself…is fit for treasons, stratagems, and spoils, the motions of his spirit are dull as night, and his affections dark as Erebus.

William Shakespeare
From: The Merchant of Venice