Jeet Kune Do (Chinese: 截拳é“; Cantonese Yale: jiht kyùhn douh; [tsiÌ€ËtÌš.kÊ°yÌËn.toÌ€u]), or "The way of the intercepting fist" in Cantonese, abbreviated JKD, is a hybrid philosophy of martial arts heavily influenced by the personal philosophy and experiences of martial artist Bruce Lee. Lee founded the system on July 9, 1967, referring to it as "non-classical", suggesting that it is a formless form of Chinese Kung Fu. Unlike more traditional martial arts, Jeet Kune Do is not fixed or patterned and is a philosophy with guiding ideas. Named for the Wing Chun concept of interception or attacking when one's opponent is about to attack, Jeet Kune Do's practitioners believe in minimal effort with maximum effect and extreme speed.