Describe diligence and sureness. Also describes the appearance of diligence. The origin of the idiom: Sima Qian's Letter of Appointment in the Han Dynasty: "Those who wait insult the book, teach them to be obedient, and promote the sage to be a scholar, and they are diligent." Example of idioms: reward and accumulate virtue, and be diligent. ★ Traditional writing "The History of the Three Kingdoms, Wu Zhi and Zhou Yuchuan": diligent; ㄑㄧㄣˊㄑㄧㄣˊㄣㄣㄣㄣㄎㄣ Diligence. Refers to the seriousness of doing things: common idioms and feelings. Color: neutral idioms, idiom structure: the age of joint idioms: English translation of ancient idioms: enthusiastic and earnest