Training for strength and flexibility is a must. You must use it to support your techniques. Techniques alone are no good if you don't support them with strength and flexibility.
Bruce LeeWhen you fight, if it is a real fight, use every tool that you have, use your whole body. Use your fists, your legs, your fingers, your head if you have to, and hit them in every vulnerable spot, the balls, the eyes etc. to win.
Bruce Lee