词穷理极

Explanation: Poor: finished, do; most: the end, at the end. Finish, thoroughly publicize the reasons. 　　Source: Song Wang, "speech-like seven of the five initiates Confidential Memorandum," Cheng Ming original Majesty the sun and moon, the police minister of the Qing, Ciqiong very reasonable, non-such as to avoid when still in the ministry can take place. "