1. It is enough to know one thing in life, and the world should treat it with sympathy.

——Lu Xun's "Words to Qu Qiubai"

2. The sweet taste eventually perishes. It is still known at the end of the year that the friendship between gentlemen is as light as water.

——Xin Qiji of the Southern Song Dynasty, "Dong Xiange·Ding Mao was ill in August"

3. A fence has three stakes, and a hero has three gangs.

——Gu Jianfen "The World Needs Warm-hearted People"

4. When people help me, I will never forget it; when I help others, I won't forget it.

——What Hua Luogeng once said