One rule is to not use complicated techniques unless they are necessary to achieve your goal. First, use simple movements, and if they don't work, then introduce the more complex ones.

I'm moving and not moving at all. I'm like the moon underneath the waves that ever go on rolling and rocking. It is not, "I am doing this," but rather, an inner realization that "this is happening through me," or "it is doing this for me." The consciousness of self is the greatest hindrance to the proper execution of all physical action.

Zen is not “attained” by mirror-wiping mediation, but by “self-forgetfulness in the existential 'present' of life here and now.” We do not “come”, we “are.” Don't strive to become, but be.

The principle of martial arts is not a thing that can be learned, like a science, by fact-finding and instruction in facts. It has to grow spontaneously, like a flower, in a mind free from emotions and desires.

Knowledge earns you power, character earns you respect.

A quick temper will make a fool of you soon enough.

Empty your cup so that it may be filled; become devoid to gain totality.