LORENZO: The man that hath no music in himself,
Nor is not moved with concord of sweet sounds,
Is fit for treasons, stratagems, and spoils;
The motions of his spirit are dull as night,
And his affections dark as Erebus.
Let no such man be trusted. Mark the music.William Shakespeare (1564-1616) English dramatist and poet
Merchant of Venice, Act 5, sc. 1, l. 92ff (5.1.92-97) (1597)
(Source)