The meaning of life is that it is to be lived, and it is not to be traded and conceptualized and squeezed into a patter of systems. - Bruce Lee

the whip of the arm is caused by turning the body away from the arm until the range of movement in the shoulder joint is completely used. Then, the arm must turn with the body. Executed quickly, this causes the arm to whip forward as if released from a bow.

Do not practice finely skilled movements after you are tired, for you will begin to substitute gross motions for finer ones and generalized efforts for specific ones. Remember, wrong movements tend to supervene and the athlete's progress is set back. Thus, the athlete practices fine skills only while he is fresh. When he becomes fatigued, he shifts to tasks employing gross movements designed principally to develop endurance.

There are no limits. There are plateaus, but you must not stay there, you must go beyond them. If it kills you, it kills you. A man must constantly exceed his level.