Shakespeare and music

[Eduardo]

"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."

- Lorenzo to his lover, Jessica, in The Merchant of Venice, Act V Scene 1. 

And that was a hundred and fifty years before Bach was composing! I'm giving my fingertips a rest, and reading some Shakespeare. Has anybody seen a more eloquent defence of the value of music than that?