外方内圆

Explanation: Foreign appearance with edges and corners, upright; the inner circle without edges, smooth. The appearance of a person of integrity, the inner smooth. 　　Source: "To the Later Han Yun Biography" capital of the corruption case of extension of evil, foreign internal staff (round), cronies rape the neglect on the harm. " Thesaurus:  kickshaws, in name only, exist in name only, be swollen with arrogance but lack mental or spiritual ballast, buckram, Waigangneirou, beautiful Had [would] as lief ...as real, It seems to be Antonym Group:  velvet glove, an iron fist in a velvet glove, ruthless character behind a gentle appearance is like a needle hidden in silk floss