蝇营鼠窥

Explanation: Between the same camp as the fly, looked like a rat warrens. Metaphor everywhere seek personal gain, greed, shameless. 　　Source: Ming Wu Cheng-en, "He Xuebo Qi Tao Ying Prize not order the" hand about eye language, Zhou Zhang watery, flies, mice glimpse of camp, shooting benefits such as worm, I see the powerful horse broker of the marketplace but also, and now fabric of the school carry on. "