薰莸不同器

Explanation: Incense grass, good class analogy; Caryopteris smell the grass, metaphor evil things. Vanilla and not in a smelly objects in the grass. Analogy can not be good and bad coexist. 　　Usage: The main predicate; as object, attribute; analogy can not be good and bad coexist 　　Source: "Analects of Confucius, concept thinking" back to the smell smoked Caryopteris the possession of different devices, not Republic of China Yao Jie and rule, with its class differences as well. " Thesaurus:  Xunyouyiqi