an.2.32 Aṅguttara Nikāya (Numbered Discourses)
The Chapter on the Peaceful Mind
32“Mendicants, I will teach you the level of the bad person and the level of the good person.
Listen and pay close attention, I will speak.”
“Yes, sir,” they replied.
The Buddha said this:
“What is the level of the bad person?
The bad person is ungrateful and thankless,
for the wicked only know how to be ungrateful and thankless.
It is totally the level of a bad person to be ungrateful and thankless.
The good person is grateful and thankful,
for the virtuous only know how to be grateful and thankful.
It is totally the level of a good person to be grateful and thankful.”