[Zen] is :
Not reliant on the writen word,
A special transmission separate from the scriptures;
Direct pointing at one's mind,
Seeing one's nature, becoming a Buddha.
-- Bodhidharma (?-526 A.D.)
[Tao(from Chinese Ô³)] is :
an Oriental Philosophy,
though it is also said to be neither but rather a way of life.
Translated literally, it means "Way" or "Path". The Tao is the natural order of things. It is a force that flows through every living or sentient object, as well as through the entire universe.