The fourth (of the four cardinal virtues) is supportiveness: this manifests as service to others without expectation of reward. (Paraphrased: Such service is not a mere conforming to some external rule of behavior, but instead a manifestation of your original nature).
The wise person dines on something more subtle: He eats the understanding that the named was born from the unnamed, that all being flows from non-being, that the describable world emanates from an indescribable source.
If princes and kings could follow it (Tao), all things would by themselves abide, Heaven and Earth would unite and sweet dew would fall. People would by themselves find harmony, without being commanded.
Why not simply honor your parents, love your children, help your brothers and sisters, be faithful to your friends, care for your mate with devotion, complete your work cooperatively and joyfully, assume responsibility for problems, practice virtue without first demanding it of others, understand the highest truths yet retain an ordinary manner? That would be true clarity, true simplicity, true mastery.
A good traveler has no fixed plans and is not intent upon arriving. A good artist lets his intuition lead him wherever it wants. A good scientist has freed himself of concepts and keeps his mind open to what is. Thus the Master is available to all people and doesn't reject anyone. He is ready to use all situations and doesn't waste anything. This is called embodying the light. What is a good man but a bad man's teacher? What is a bad man but a good man's job? If you don't understand this, you will get lost, however intelligent you are. It is the great secret.
Thus it is that "Some things are increased by being diminished, others are diminished by being increased." What others have taught, I also teach; verily, I will make it the root of my teaching.
The Tao is always at ease. It overcomes without competing, answers without speaking a word, arrives without being summoned, accomplishes without a plan. Its net covers the whole universe. And though its meshes are wide, it doesn't let a thing slip through.
Whoever relies on the Tao in governing men doesn't try to force issues or defeat enemies by force of arms. For every force there is a counterforce. Violence, even well intentioned, always rebounds upon oneself. The Master does his job and then stops. He understands that the universe is forever out of control, and that trying to dominate events goes against the current of the Tao. Because he believes in himself, he doesn't try to convince others. Because he is content with himself, he doesn't need others' approval. Because he accepts himself, the whole world accepts him.
Tao is beyond words and beyond understanding. Words may be used to speak of it, but they cannot contain it. Tao existed before words and names, before heaven and earth, before the ten thousand things. It is the unlimited father and mother of all limited things. Therefore, to see beyond boundaries to the subtle heart of things, dispense with names, with concepts, with expectations and ambitions and differences. Tao and its many manifestations arise from the same source: subtle wonder within mysterious darkness. This is the beginning of all understanding.