What is true stillness? Stillness in movement.
A good fighter must sense rather than perceive his chance to strike.
Absorb what is useful, discard what is not, add what is uniquely your own.
If you don't want to slip up tomorrow, speak the truth today.
A good martial artist does not become tense, but ready. Not thinking, yet not dreaming. Ready for whatever may come. When the opponent expands, I contract; and when he contracts, I expand. And when there is an opportunity, "I" do not hit, "it" hits all by itself.
The usefulness of the cup is its emptiness.