In addition to Wing Chun, he also studied Hung Kuen, Crane Kuen, Taitui (Spring Leg Style), Shaolin Quan, and Chuo Jiao (Poking feet), laying a solid foundation for his creation of Jeet Kune Do.

Spring tendons enhance the foot’s efficiency: some of the energy spent to drop one’s weight down when taking a step is actually stored and then returned to the leg as it rebounds.

In the spring and autumn period, jin prince chong 'er is a fugitive, hard life, with his jie zitui willing to cut a piece of meat from his own leg let him.