A leader must understand that criticism sharpens the mind li... - Vespasian

"A leader must understand that criticism sharpens the mind like a whetstone sharpens steel."

Vespasian Leadership

Emperor General Ancient Rome 9–79

More from Vespasian

"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!"

"A leader must be fair and just."

"Integrity is everything."

"One must take responsibility for one's environment."

"In this house, I make the decisions"