I hate ingratitude more in a man,
Than lying, vainness, babbling, drunkenness,
Or any taint of vice.
_Twelfth Night, Act iii. Sc. 1_. SHAKESPEARE.
He that's ungrateful, has no guilt but one;
All other crimes may pass for virtues in him.
_Busiris_. DR. E. YOUNG.
Ah, how unjust to Nature and himself
Is thoughtless, thankless, inconsistent man!
_Night Thoughts, Night II_. DR. E. YOUNG.
How sharper than a serpent's tooth it is
To have a thankless child!
_King Lear, Act i. Sc. 4_. SHAKESPEARE.