露才扬己

Explanation: Reveal their talents. Also be used to show off to, express themselves. 　　Usage: Joint type; as the predicate attribute, object; that reveal their talents, express themselves 　　Source: Han Ban Gu, "order": "If this Qu Yuan, Lu Cai Yang himself, competing almost crisis between the country N group to the thief from the slander." 　　Examples: Learned to know not only lost the meaning of service, and the opening ~ the wind, the scholars of the illness also. (Qing Chen Li, "Zheng Dongshu time secretary")