"When asked what the difference between a karate punch and a kung-fu punch was during his first U.S. screen test in 1965, Bruce Lee replied, “Well, a karate punch is like being hit by an iron bar—whack! A kung-fu punch is like being hit by an iron ball swung on an iron chain with an iron ball attached to the end—it goes WHANG!—and it hurts inside.” Then he stood up and showed exactly what that might look like in a flurry of hands and feet moving so fast they blurred."