A good door needs no lock, still it can't be opened.

If you realize that all things change, there is nothing you will try to hold on to. If you are not afraid of dying, there is nothing you cannot achieve

All things issue from it; all things return to it. To find the origin, trace back the manifestations. When you recognize the children and find the mother, you will be free of sorrow. If you close your mind in judgements and traffic with desires, your heart will be troubled. If you keep your mind from judging and aren't led by the senses, your heart will find peace. Seeing into darkness is clarity. Knowing how to yield is strength. Use your own light and return to the source of light. This is called practicing eternity.

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.}

How can a man's life keep it's course If he will not let it flow, Those who flow as life flows know They need no other force: They feel no wear, they feel no tear, They need no mending, no repair.

The highest tone is hard to hear.

Whoever is planted in the Tao will not be rooted up. Whoever embraces the Tao will not slip away. Her name will be held in honor from generation to generation. Let the Tao be present in your life and you will become genuine. Let it be present in your family and your family will flourish. Let it be present in your country and your country will be an example to all countries in the world. Let it be present in the universe and the universe will sing. How do I know this is true? By looking inside myself.