-Cao Xueqin
Know yourself in the sea, and heaven is still our neighbor. —— (Tang)
Know each other, know each other, know each other, know each other. -(Spring and Autumn Period) Mencius
Life is about getting to know each other. -(Song) Wang Anshi
For my heart, for your heart, we will know each other and remember each other deeply. -(Song) Gu Xia
The mountains and rivers are not heavy enough. It is important to know yourself. -Bao Rong
People who have affairs are not our kind. -(Tang) Meng Haoran
A gentleman is as light as water, the older he gets, the truer he is. -Xunzhi Zhai Ji