Remember, the most common thing about common sense is how uncommon it is.
Think Big, Act Small: How America's Most Profitable Companies Keep the Start-up Spirit AliveTo use the enemy's weapon is to play the enemy's game...speak the truth and hear the truth.
City of IllusionsA true warrior hits the strongest part of his enemy. A efficient blow can destroy enemies easily.
Srinivas ShenoyThere is no disgrace in an enemy suffering ill at an enemy's hand, when you hate mutually.
Aeschylus