Who said "I believe that duty is the highest calling of man."?

This quote is attributed to Philip II.

I believe that duty is the highest calling of man. - Philip II

"I believe that duty is the highest calling of man."

Philip II Leadership

King Warrior Ancient Macedonia 382–336

"I am not a man to be trifled with in matters of state."

"The greatest glory of a man is to have conquered himself."

"I would rather lose a province than risk the displeasure of God."

"Patience is the virtue of the strong."

"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"