The Ultimate Source of Jeet Kune Do

Bruce Lee's Commentaries on the Martial Way
edited by : J Little 
Published by : Tuttle Publishing

My purpose in creating jeet kune do was not to compare with other branches of martial arts. Anything that becomes a branch would induce bad feeling. Once there is a formation of branch, then things seem to stop. Students would labor for regulations and rules. Then the meaning of martial art would be lost. Even today, I dare not say that I have reached any state of achievement. I'm still learning , for learning is boundless.

Like a man's body , you would not say that your hand was better than your leg or vice versa ; you have  to coordinate the two , to use them both skillfully in order to produce a satisfactory result.