It means: the most full thing seems to be empty; The most perfect thing seems to be incomplete; The most upright thing seems to have a bend; The whitest thing contains dirt instead; The most square thing has no edges and corners; The loudest sound sounds silent instead; The biggest image has no shape; The most dexterous thing seems to be the most clumsy.

This sentence comes from the forty-first and forty-fifth chapters of Laozi's Tao Te Ching, and its contents are as follows:

1. The original content of the forty-first chapter is:

Staff sergeant learns the Tao and works diligently; The sergeant heard that if you survive, you will die; The corporal heard this and laughed. It is not enough to laugh. Therefore, some suggestions are made: if Ming Dow is ignorant, if he enters the Tao, if he retreats, if he abandons the Tao, he will be embarrassed. Shangde ruogu; If the white is insulting; If Guangde is insufficient; If Jiande steals; If the quality is really Chongqing. Generous; A late bloomer; Great voices and happy voices; Elephants are invisible; Tao is hidden and nameless. The husband is the only way, and the loan is good.

2. Original content of Chapter 45:

If a great achievement is lacking, its use will not be harmful. If you have a big profit, you can use it endlessly. If you are straightforward, if you are clumsy, if you are arguing. Calm is better than impatience, and cold is better than heat. Quiet is right for the world.

Extended information:

The Classic of Tao Te Ching is a philosophical work of Laozi (Li Er) in the Spring and Autumn Period, also known as the True Classic of Morality, Laozi, Five Thousand Words and Laozi's Five Thousand Articles. It is a work of pre-Qin philosophers in ancient China before their separation, and it is an important source of Taoist philosophical thoughts. The Tao Te Ching is divided into two parts. The first part of the original is the Tao Te Ching and the second part is the Tao Te Ching, which is divided into 81 chapters.

The text of Tao Te Ching takes the philosophical meaning of "morality" as the key line, and discusses the ways of self-cultivation, governing the country, using troops and keeping in good health, but mostly takes politics as the purpose. It is the so-called "sage inside and king outside" and is known as the king of all classics with profound meaning and extensive inclusion.

Reference: Baidu Encyclopedia _ Tao Te Ching