As teachers and Masters, it is crucial that we not only preserve the tradition and the teachings, but also the art and its lineage. Many students today don't know their Master's roots (his Master's name, and the Master before him).
The legacy of Martial Arts is not a low block or a punch; it should be in the teachings of the Masters, the principles behind the motions, the way of life.
Goju Ryu Karate relies on the theory of hard and soft to create balance, while Taekwondo believes in Yin and Yang for that same reason.
https://www.youtube.com/watch?v=oMVGb27AAd4
