Courage and caliber

This piece of monologue might suit perfectly to a real hero:

"Enemies. I heard somewhere that you cannot trust someone unless he has enemies. What would you expect in your enemy? Certainly not cowardice. I pity and hate cowards. I want to have nothing to do with them. I want my enemies to have a certain caliber and ability. I want my enemies to be my equals. How else can I justify my own skills and strengths, unless I demonstrate them against my enemies? And how can my skills be considered worthwhile unless I meet my match? That is why I look for enemies with deadly skills. I am worthless if I have a coward for an enemy."