Jeffrey M. Miller is the founder of Warrior Concepts Int'l. He is the author of, KUBOTAN: Self-Defense Keychain and the best selling DVD, Danger Prevention Tactics You can subscribe to his ezine, at http://www.warrior-concepts-online.com/newsletter.html
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What are the most important "things" that are the cornerstones of the foundation leading to the state of martial arts Mastery in the art of Ninjutsu - or any other martial art for the matter? I'll give you a hint - they're not your skills or techniques. If you want to know... read this article to find out!