当之无愧

Explanation: A well-deserved: There is no look of shame. Deserve the title or some kind of honor, not shame. 　　Usage: The main predicate; as the predicate attribute; with compliment 　　Source: Song Ouyang Xiu, "judge the book back to the small": "Madame has been the ease with thick who relies on which of them so when the worthy people." 　　Examples: Chun Weng Yisheng, Qin Qing Shen words, can ~. (High-Yang "Qing Unofficial History" on the books) Thesaurus:  Taken for must