and then off course there is this from Yukiyoshi Takamura Sensei :
"Some aikido teachers talk a lot about non-violence, but fail to understand this truth. A pacifist is not really a pacifist if he is unable to make a choice between violence and non-violence. A true pacifist is able to kill or maim in the blink of an eye, but at the moment of impending destruction of the enemy he chooses non-violence. He chooses peace. He must be able to make a choice. He must have the genuine ability to destroy his enemy and then choose not to. I have heard this excuse made. "I choose to be a pacifist before learning techniques so I do not need to learn the power of destruction." This shows no comprehension of the mind of the true warrior. This is just a rationalization to cover the fear of injury or hard training. The true warrior who chooses to be a pacifist is willing to stand and die for his principles. People claiming to be pacifists who rationalize to avoid hard training or injury will flee instead of standing and dying for principle. They are just cowards. Only a warrior who has tempered his spirit in conflict and who has confronted himself and his greatest fears can in my opinion make the choice to be a true pacifist."
Techniques do not kill or maim, people do. If you are good enough you get to choose.