1. Mourning is greater than dying in the heart, and human death is second.

It's from Zhuangzi Tian Zifang, which means: The biggest sorrow is that the heart is dying and the spirit is destroyed, and the death of human body is secondary.

2. Heaven and earth coexist with me, and everything is one with me.

It comes from Zhuangzi Lieyukou, which means that skilled people are tired, smart people are worried, and those who have no skills have no pursuit.

3. Everyone knows what is useful, but he doesn't know what is useless.

It comes from "Zhuangzi Health Master", which means that people are always happy for valuable people or things, but they ignore that people or things that have not developed value are also useful.

4. Big knowledge is idle, and small knowledge is intermittent; Big words are hot, small words are Zhan Zhan.

It comes from Zhuangzi's Theory of All Things, which means: The most intelligent people always show an open-minded attitude; Small and talented people always haggle over trifles. The words that conform to the avenue are like a prairie fire, both beautiful and grand, which makes people convinced. Those clever remarks are trivial and nonsense.

5. Wei Sheng and the woman lived under the beam. If the woman didn't come, the water wouldn't go, and she died clinging to the beam.

It's from Zhuangzi Stole the Foot. The main idea is that in ancient times, a man named Wei Sheng dated his sweetheart under the bridge. When the river rose, the woman didn't come. In order not to break his promise, Wei Sheng clung to the bridge pillar and was drowned by the river.