Intellectual knowledge exists in and of the brain. Because the brain is part of the body, which must one day expire, this collection of facts, however large and impressive, will expire as well. {But spiritual insight transcends death.}
Things flourish, then each returns to its root. Returning to the root is called stillness: Stillness is called return to life, return to life is called the constant; knowing the constant is called enlightenment.
He who stands on tiptoe is not steady. He who strides cannot maintain the pace. He who makes a show is not enlightened. He who is self-righteous is not respected. He who boasts achieves nothing. He who brags will not endure. According to followers of the Tao, "These are extra food and unnecessary luggage." They do not bring happiness, therefore followers of the Tao avoid them.
Nothing in the world is more flexible and yielding than water. Yet when it attacks the firm and the strong, none can withstand it, because they have no way to change it. So the flexible overcome the adamant, the yielding overcome the forceful. Everyone knows this, but no one can do it.
We join spokes together in a wheel, but it is the center hole that makes the wagon move. We shape clay into a pot, but it is the emptiness inside that holds whatever we want. We hammer wood for a house, but it is the inner space that makes it livable. We work with being, but non-being is what we use.
Giving to others selflesly and anonymously, radiating light throughout the world and illuminating your own darkness, your virtue becomes a sanctuary for yourself and all beings.