Things are impermanent, and the most unpredictable thing is the human heart. He who sees through things in the world will always be disheartened and become indifferent to everything. But even so, people can't leave the world. After all, people are not immortals, and it is impossible to break away from social life and cut off all contact with the outside world. Then you should learn to have a normal heart. Integrity, natural integrity of the heart, right and wrong in the heart.

From the classics of China sages

Extended data

Excerpts from the Seven-Word Sage Classic

A friendship between gentlemen is as light as water, but a friendship between villains is like wine and meat. Human feelings are as thin as paper and things are as new as chess.

Easy to rise and retreat, easy to change. It's hard to draw bones when drawing tiger skin.

Say something to everyone, but you can't throw away all my heart. Time on earth is rare, but old friends on earth are closer.

Don't keep pace with the times at any time, and don't strive for perfection. People who see through the world are terrified, hurting people's feelings and chilling people's hearts.

A gentleman is poor, who wants to meet today without paying for drinks? I am a lonely stranger in a strange land, and I miss my family more often during the holidays.

References:

China Saint Classic-Baidu Encyclopedia