Elbow oil has the best polishing effect.

The edge of the sword comes from sharpening, and the fragrance of plum blossoms comes from bitter cold.

note:

Diligent articles in A Warning to the World;

There are fields that don't plow and books that don't read.

Bao Jianfeng came from sharpening the fragrance of plum blossoms to bitter cold.

Young people and young people come to school without studying hard and regret being late.

When a book is used, it is hard to hate small things until it is passed.

After ten years on the bench, I haven't written an empty article.

Wisdom comes from diligence, and greatness comes from the ordinary.

There is a road in Shushan, but there is no limit to learning the sea.

If you don't work hard when you are young, your boss will be sad.

You must work hard to survive and develop.