I'm definetely aware of that, "Mr. Sayod Ka". The mind is a very powerful tool in Martial Arts. That is precisely the reason why all Martial Arts Creed, strongly emphasize, never to use your "Discipline", unless you are in a situation, wherein you are left with no option.
But I would stick to the subject matter, which is a form of Martial Art that mainly focus on "Persuading your enemy and let him/her understand, that you're not into making trouble, is that what you mean? But there are really situations in which persuasion and being Mr. Nice Guy, might not work.
Martial Arts from what I have learned, through research and personal knowledge, is both mind and body development. Mind and body should be synchronized, in order for it to be effective not just in the dojo, but also in real life situation. Martial Arts, in layman's term can be defined as a physical activity, which involves using your hands, feet or any part of your body to combine with how to use it, which means the technique, well that's the "Body part". The Mind is the part wherein a Martial Arts student is taught, when to use it, and the consequences as well. Technically speaking, there is no such form of Martial Art that doesn't use both mind and body. Basically, that's the reason why I am asking, as to what form of Martial Art is that? It might be possible that a Martial Arts Creed or Principle for that matter, is useful in evading fights or a non-physical resolving of a conflict. I hope I'm not mistaken, but technically speaking a Martial Art which only deals on the mind only, is a remote possibility. As of present, I haven't heared of any form of Martial Art of that kind, unless you've got to give me a bird's eye view of that type of Martial Art.