2, read the book a hundred times, its meaning is self-evident.
3. People should have a strong heart and trees should have hard skin.
Your persistence is irreplaceable.
What you haven't kept is called youth.
6. No matter how clever a person is, he has long-term ideas.
7. Stand on the road and make a name for yourself.
8, floating like a dream, for the joy of geometry.
9. When you are young, happiness is very simple.