Who said "To rule justly, one must first understand injustice."?

This quote is attributed to Vespasian.

To rule justly, one must first understand injustice. - Vespasian

"To rule justly, one must first understand injustice."

Vespasian Justice

Emperor General Ancient Rome 9–79

"I wish I had never been emperor."

"Friends, I have often heard that it is a hard thing to grow old."

"It is the nature of man to desire peace."

"What a king I am leaving behind me!"

"Justice must always prevail."

"You think I'm just some animal?"

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

"Justice is worth fighting for."