In their pure form, the martial arts demand the intense awareness of the meditative mind, and have nothing to do with anger or wanton aggression. A practitioner is taught from the outset that the skills must never be used for personal gain, but only in self-defence or in the protection of others -- and even then only enough force as is absolutely necessary should be used.
Learn to Meditate: Find Deep Relaxation, Relieve Stress and Anxiety, Enhance Creativity (ed. Duncan Baird Publishers, 2013) - ISBN: 9781780287270