"An injury engraves itself on metal; a benefit is written on the waves." - JEAN BERTAUT, attributed

"Whom they have injured they also hate." - SENECA, Epistulae ad Lucilium

"It is human nature to hate those whom you have injured" - Tacitus, Life of Agricola

"He who injured you was either stronger or weaker. If weaker, spare him; if stronger, spare yourself." - SENECA, De Iraq