You cannot make a silk purse out of a sow's ear

You cannot make a silk purse out of a sow's ear.

Prov. You cannot make someone more refined than he or she is by nature. I've given up trying to get my cousin to appreciate classical music. You can't make a silk purse out of a sow's ear.
See also: cannot, ear, make, of, out, purse, silk
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