““Lao-tzu didn’t actually say very much more about the meaning of Tao. The Way of Nature, the Way of happening self-so, or, if you like, the very process of life, was something which he was much too wise to define. For to try to say anything definite about the Tao is like trying to eat your mouth: you can’t get outside it to chew it. To put it the other way round: anything you can chew is not your mouth.””