Knowing the truth of harmony and balance is called "Chang", and knowing how to get along with it is called "Ming".

Life is auspicious, and the heart makes the gas stronger.

There are two explanations for "thinking more all one's life": one explanation is that the act of increasing life is called "thinking"; Another explanation is that the act of increasing life is called ominous. The second explanation is adopted here. Because life can be cultivated, not beneficial. Satisfying one's physiological function according to objective needs is health preservation, and beyond the scope of objective needs is "benefit" Laozi said: "If something is beneficial, it will be damaged, and if something is damaged, it will be beneficial." Therefore, probiotics often produce damaged results. After all, everything has its inherent attributes, and forced changes that ignore objective reality will inevitably backfire.

Heart makes qi stronger: heart, will and desire. In the third chapter of Lao Zi, it is said that "a guilty conscience and a solid belly". Qi, strength and energy. Ability is dominated by personal will and desire, and doing whatever you want is called courage.

The first two sentences summarize "Chang" and "Ming", and the last sentence "Happy life, stronger heart" is a departure from "Chang" and "Ming", which is called "I don't know Chang, but I make a mistake". What is "fierce"? A bad ending that runs counter to the opposite.

One person is like this, and so is a country. Be as full as a baby, which is harmless to the body. If you abuse Viagra under the drive of desire, it will definitely make you aging ahead of time. The development of a country depends on its own creative ability. If we take reckless short-term quick success and instant benefit measures such as abusing foreign capital, selling resources and polluting the environment in order to catch up with the Premier League and the world ranking of GDP, a temporary prosperity will definitely bring about a long-term recession.

Here, Lao Tzu takes babies as an example to tell people a rule that should be followed in governing the country.