Anger has its place, but it will not serve you here, the way of the warrior is the way of knowing. Of that knowledge requires you to use anger, then you use anger, but you cannot wrest forth knowledge by losing your temper.
Christopher PaoliniLet'sss just kill him," said the shorter Ra'zac. "He has caused us much grief." The taller one ran his finger down his sword. "A good plan. But remember, the king's instructions were to keep them alive." -from Eragon, Chapter Title: The Ra'zac's Revenge.
Christopher Paolini