The heart is deceitful above all things, and desperately wicked; who can know it?
— Bible

Nothing is more deceitful than the appearance of humility. It is often only carelessness of opinion, and sometimes an indirect boast.
— Jane Austen

O Lord, deliver me from the man of excellent intention and impure heart: for the heart is deceitful above all things, and desperately wicked.
— T. S. Eliot

Tragedy is restful: and the reason is that hope, that foul, deceitful thing, has no part in it.
— Jean Anouilh

Favour is deceitful, and beauty is vain: But a woman who fears the Lord, She shall be praised. (Proverbs 31:30 Modern King James Version)
— Anonymous