It is easy to endure hardships, and then you can become a superior person. Life is about hard work, and nothing will be gained without asking for anything - Zhang Heng

The industry is good at hard work but wasteful at play, and the action is accomplished by thinking. Destroyed by casualness. - Han Yu

Genius is the ability to work hard and diligently without end. - Carlisle

If a young man does not work hard, he will be sad

The black-haired man does not know Study diligently early, and regret studying late.