About what Zhai Hongshen, a master of Chinese studies, said.

The first is sex. Those who slapped, it was Yang who spoke; Shut it and be silent, shut it and be cloudy. Try yin and yang. In this way, it is everywhere, everywhere, everywhere. It can be said that people, families, countries and the world. Alignment is opening and closing. Simply put, the word "yes" here means "no", "yes" and "no". Refers to the ability to do things when to say what and when not to say what. Harmony can be used everywhere, which can be used to communicate with people, deal with housework, state affairs, and even everything in the world. Zhai here emphasizes good communication skills, including communication skills and persuasion skills.