10 truths about human nature:

1. 90% of people are ungrateful.
2. Without money, even breathing is wrong;
3. In an era of insane competition, others can't wait for you to fail.
4. Kindness is the cheapest thing, strength is the hard truth;
5. Most people are selfish and self-serving; no one cares about your suffering unless you are a billionaire.

6. Tolerating the strong and despising the weak is a characteristic of most people.
7. No one cares about your tragic experiences; others eat a meal and forget everything, unless they have the same experiences as you.
8. Interpersonal relationships without vested interests will not last long.
9. In this world, you can only rely on yourself; even parents and children cannot be trusted.
10. Disliking the poor, fearing the rich, resenting those who have, and laughing at those who do not, is an unchanging law.