As follows:

1. The most precious thing is today, and the easiest thing to lose is today.

2. Those behind the times are the most pitiable.

3. Yesterday cannot be brought back, and tomorrow is not certain. What you can be sure of is today.

4. The highest ideal in life is to seek the truth.

5. A person's life contains countless new eras before he can complete his noble life. Only the entire history of mankind, connected with countless new eras, can realize this great mission of mankind.

6. The most interesting thing in life is to see off the old and welcome the new, because the highest desire of human beings is to create a new life all the time.