1. The past has become history, and the future is still unknown. We don't need to lament yesterday, nor do we need to worry about tomorrow. We must live in today, live in the compartment between the past and the future, so that we can do today's things well and have hope for tomorrow.

2. It is better to ask for help from yourself than to ask for help from others, and it is better to ask for help from Buddha than to ask for help from others. In life, don't do as many things as you can, just do one big thing and do it well. Do a good job while you are young, don't wait, and you will be sad when you are old!

3. Some things can be changed, so we should try our best to change them for the better; some things we can't change, but we can accept the facts calmly, at least we won't be exhausted.

4. What is happiness? Some people believe that happiness is having a luxury house and a luxury car, some people believe that happiness is being with the one they love, some people believe that happiness is seeing the sunshine every day, and some people believe that being alive is happiness.