Qi Jiguang

"The fist methods do not seem to concern themselves with the arts of great warfare; nevertheless, to move the hands and feet actively and to work habitually the limbs and body constitutes the gateway to beginning study and entering the art."

"Once you have acquired the skills, you must test them on an opponent, but in no way should you consider victory or submission to be a cause for shame or pride. Rather, you ought to think, "By what means did I defeat him?" Or, "By what means could I have defeated him?" Then you exert and test yourself for a while."