A fair face may hide a foul heart.

Meaning: Physical beauty deceives; assess character through actions and behavior, not appearance alone.

Origin: From 'A Dictionary of English Proverbs and Proverbial Phrases' (1870). Public domain.

More proverbs about Morality

As good to be out of the world as out of the fashion. — Social irrelevance destroys one's sense of existence as thoroughly as physical death.
Tis good fish if it were but caught. — Potential alone means nothing without the effort and skill required to seize actual oppor…
There's as good fish in the sea as were ever caught. — Lost opportunities aren't final; future chances remain equally promising if you persevere.
To forget a wrong is the best revenge. — Holding onto grievance poisons the grudge-bearer while freeing the offender from further…
He that sings on Friday shall weep on Sunday. — Premature celebration invites misfortune; joy separated from caution courts sorrow.
Though good be good yet better carries it. — Excellence demands continuous improvement; settling for mere goodness invites complacency…

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