A good sword is the one left in its scabbard.
Sword fighting in film is not about how good the fighter is, but how good the actor receiving the blows is.
Beware of turning into the enemy you most fear. All it takes is to lash out violently at someone who has done you some grievous harm, proclaiming that only your pain matters in this world. More than against that person's body, you will then, at that moment, be committing a crime against your own imagination.