When one has reached maturity in this art, one will have the formless form. It is like the dissolving or thawing [of] ice into water that can shape itself to any structure. When one has no form, one can be all forms; when one has no style, one can fit in with any style.
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