1. Gorky: Quote: If you follow an upright and honest life path, you will definitely have a clear conscience.

2. Molière: It is more important for a person to strictly keep his promise than to guard his property.

3. Amir: Credit is like a mirror. As long as there are cracks, it cannot be connected as before.

4. Shakespeare: Not all shiny things are gold; not all beautiful words are good words.

5. Somerset Maugham: Conscience is the sentry in each of our hearts. It is there on duty to monitor us and not do anything illegal.