Always Quote by Tacitus

Revenge is a much more punctual paymaster than gratitude

— Charles Caleb Colton

There are minds so impatient of inferiority that their gratitude is a species of revenge, and they return benefits, not because recompense is a…

— Samuel Johnson

Revenge is profitable, gratitude is expensive.

— Edward Gibbon

Expect no reward when you serve the wicked, and be thankful if you escape injury for your pain

— Aesop

We can more easily avenge an injury than requite a kindness; on this account, because there is less difficulty in getting the better of…

— Marcus Tullius Cicero

Requite injury with kindness.

— Laozi

Gratitude is a duty which ought to be paid, but which none have a right to expect.

— Jean-Jacques Rousseau

It is impossible to suffer without making someone pay for it; every complaint already contains revenge.

— Friedrich Nietzsche

The injustice done to an individual is sometimes of service to the public.

— Junius

Service heals the recipient and the giver.

— Bryant H. McGill

There is no duty more indispensible than that of returning a kindness.

— Marcus Tullius Cicero

Gratitude is a duty none can be excused from, because it is always at our own disposal.

— Pierre Charron