不辨真伪

Explanation: Debate: resolution. Pseudo-: false. Not distinguish between true and false. 　　Source: San Guowei Cao Zhi, "When the wall For Gao," made three to greedy, loving mother-incompatibility; angrily customs difference, do not distinguish authenticity. " 　　Examples: Lord Wen asked over Cao Cao too many people of insight, and its evening rush ~. ★ Ming Feng Meng, "Eastern Zhou Zhi" thirtieth back