Black-haired people don’t know how to study early, and white-headed people regret studying late. There are roads in the mountain of books, and diligence is the path, and there is no limit to the sea of ??learning, and hard work is the boat. If you don't get up early in the morning, you will miss a day's work; if you are not diligent in studying when you are young, you will miss a lifetime. Genius is the ability to work endlessly - Carlyle Diligence is like a seedling rising in spring, but it will grow if you don't see it growing; dropping out of school is like a whetstone, but you won't see it diminishing every day. If you don't get up early in the morning, you will miss a day's work; if you are not diligent in studying when you are young, you will miss a lifetime.