There is a pursuit called tireless; There is a passion called forgetting to eat and sleep; There is a kind of persistence called perseverance. He took a paper roll and deduced mathematical logic; Holding a wisp of book fragrance in his hand, he swam in the ocean of knowledge. Along the way, he used wisdom to guide the direction and diligence to weave military uniforms. He said that if there is no study, nothing will be attached to achievement.