Total adaptability to an opponent's rhythm and style. The Four Stages of Cultivation
A specific technique you'd like to refine (e.g., the lead straight, footwork). Jeet Kune Do: The Principles of a Complete Fighter
Techniques become instinctive; no conscious thought is required. Total adaptability to an opponent's rhythm and style
To help you apply these principles to a specific or combat scenario : the lead straight
The philosophy of hacking away the unessential rather than adding more complex moves.
Striking without preparatory "wind-up" movements.