Ingratitude is monstrous.
Ingratitude is monstrous; and for the multitude to be ingrateful were to make a monster of the multitude; of which we being members, should bring ourselves to be monstrous members.
To be good to the vile is to throw water into the sea.
I hate ingratitude more in a man than lying, vainness, babbling, drunkenness, or any taint of vice whose strong corruption inhabits our frail blood".
This race is never grateful: from the first, One fills their cup at supper with pure wine, Which back they give at cross-time on a sponge, In bitter vinegar.
He that's ungrateful has no guilt but one; All other crimes may pass for virtues in him.
A complaining tongue reveals an ungrateful heart.
Ingratitude is always a kind of weakness. I have never known men of ability to be ungrateful.
If someone's ungrateful and you tell him he's ungrateful, okay, you've called him a name. You haven't solved anything.