In combat, spontaneity rules; rote performance of technique perishes.

The highest technique is to have no technique. My technique is a result of your technique; my movement is a result of your movement. A good JKD man does not oppose force or give way completely. He is pliable as a spring; he is the complement and not the opposition to his opponent’s strength. He has no technique; he makes his opponent's technique his technique. He has no design; he makes opportunity his design. One should not respond to circumstance with artificial and "wooden" prearrangement. Your action should be like the immediacy of a shadow adapting to its moving object. Your task is simply to complete the other half of the oneness spontaneously.

Give up thinking as though not giving it up. Observe techniques as though not observing.

When performing the movements, always use your imagination. Picture your adversary attacking, and use Jeet Kune-Do techniques in response to this imagined attack. As these techniques become more innate, new meaning will begin to emerge and better techniques can be formulated.

Art is the expression of the self. The more complicated and restricted the method, the less the opportunity for expression of one's original sense of freedom. Though they play an important role in the early stage, the techniques should not be too mechanical, complex or restrictive. If we cling blindly to them, we shall eventually become bound by their limitations. Remember, you are expressing the techniques and not doing the techniques. If somebody attacks you, your response is not Technique No.1, Stance No. 2, Section 4, Paragraph 5. Instead you simply move in like sound and echo, without any deliberation. It is as though when I call you, you answer me, or when I throw you something, you catch it. It's as simple as that — no fuss, no mess. In other words, when someone grabs you, punch him. To me a lot of this fancy stuff is not functional.