The contents of Laozi’s Tao and De respectively refer to the following:

The “Tao” in "Laozi" is a name that Laozi reluctantly refers to the most essential nature of the universe, a bit like a source. Motivation and Law. "Virtue" is the rule that Lao Tzu applies to human beings, what people should do and what they should not do. Usually "morality" is used together with "dao", which means what the laws of the universe require us to do. Together they are called "morality".

The text of the "Tao Te Ching" takes "morality" in the philosophical sense as its outline, discussing the ways of self-cultivation, governing the country, using military force, and maintaining health. Most of it takes politics as its purpose. It is the so-called "inner sage and outer king". His studies are profound and comprehensive, and he is known as the king of scriptures. The Tao Te Ching is one of the greatest masterpieces in Chinese history and has had a profound impact on traditional philosophy, science, politics, religion, etc. According to statistics from the United Nations Educational, Scientific and Cultural Organization, the Tao Te Ching is the cultural masterpiece that has been translated into foreign languages ??the most and published besides the Bible.

It is recorded in Chapter 25 of the "Tao Te Ching": "There is a mixture of things, born in heaven and earth, lonely and lonely, independent and not changing, moving around without peril, can be the mother of the world. I don’t know its name, but it’s called Tao.”

It means that before the heaven and earth were formed, everything in the universe was chaotic and was called “chaos”. In this chaos, there are objects mixed in, and these objects are called "Qi". This word, pronounced qi, is a philosophical concept specific to Taoism. It is different from the "qi" and "air" we usually talk about. It is a metaphysical mysterious force.