Good technique includes quick changes, great variety and speed. It may be a system of reversals much like a concept of God and the Devil. In the speed of events, which one is really in charge? Do they change places with lightning speed? The Chinese believe so. To put the heart of the martial arts in your own heart and have it be a part of you means total comprehension.
Bruce LeeA powerful athlete is not a strong athlete, but one who can exert his strength quickly. Since power equals force times speed, if the athlete learns to make faster movements he increases his power, even though the contractile pulling strength of his muscles remains unchanged. Thus, a smaller man who can swing faster may hit as hard or as far as the heavier man who swings slowly.
Bruce Lee