Laozi's famous sentence: 1 Whether they are made for each other or not, they are hard to bring out the best in each other, with different lengths, mutual benefit, harmony of sound and sound, and accompanying each other. 2. Embraced wood is finally born; Nine-story platform, starting with tired soil; A journey of a thousand miles begins with a single step. 3. The heavens and the earth are ruthless, and everything is a grass dog; Sages are ruthless, and people are grass dogs. Being kind is like water, and water is good for everyone. ...