Unfortunately, now in boxing people are only allowed to punch. In Judo, people are only allowed to throw. I do not despise these kinds of martial arts. What I mean is, we now find rigid forms which create differences among clans, and the world of martial art is shattered as a result.
Jeet kune do: Bruce Lee's commentaries on the martial way (ed. Tuttle Publishing, 1997) - ISBN: 9780804831321