Who said "A good deed is never wasted."?

This quote is attributed to Avicenna.

A good deed is never wasted. - Avicenna

"A good deed is never wasted."

Avicenna Justice

Philosopher-Physician Persian 980–1037

"Knowledge is power."

"The human body is like a machine, and the mind is its engine."

"Healing is a matter of time, but it is sometimes also a matter of opportunity."

"The proof of truth is that it can endure."

"Justice must always prevail."

"You think I'm just some animal?"

"Fighting for what's right never gets easier."

"Justice is worth fighting for."