Savage Breast
The thing music has charms to soothe, not savage beast, as commonly misquoted, perhaps in an effort to derail the adolescent giggles of boys aged 7 to 70.
From The Mourning Bride, a poem by William Congreve, 1697:
"Musick has Charms to sooth a savage Breast,
To soften Rocks, or bend a knotted Oak."
"Musick has Charms to sooth a savage Breast,
To soften Rocks, or bend a knotted Oak."