Attitude poems of ancient celebrities

1. I have a shallow understanding of what I got on paper and don't know how to do it. This is education. You should know how to combine book knowledge with practice.

2. I don't know how to study hard early, but I regret learning late. -study hard, lest you regret it later.

If you don't work hard, the boss will be sad-know when to study hard so as not to regret it when you are old.