1. Each of us is equal. You can only exchange love for love and trust for trust. ——Marx

2. Be generous to oneself and blame others poorly. ——"The Analects of Confucius·Wei Linggong"

3. When we love others, we also hope that others will love us. ——Rousseau

4. Don’t do to others what you don’t want others to do to you.

5. Blame yourself with the heart of blaming others, forgive others with the heart of forgiveness. ——"Zengguang Xianwen"