Be careful in making friends and in speaking. As the old saying goes, people only say a few words, and they can't leave my heart behind. People are unpredictable, and no one can guarantee that back-to-back allies will not become face-to-face enemies one day. If you are unprepared for the people around you, leave no bottom line, and tell everything about yourself, there is no guarantee that one day they will not betray you because of difficulties, fame or fortune, or circumstances, and everything about you is in the hands of others, then your situation can be imagined.

People are fickle, and nothing is normal. I'm not asking everyone to guard against others everywhere, but to leave a line for themselves in everything. Speak, be kind to others, do things, and don't keep your word. There is nothing wrong with extremes.