芝兰之室

Explanation: Metaphor of a good environment. 　　Source: Han Dade "Big Dai" tour with a gentleman, Bi-Ru Lanzhi almost like the room, long and not heard, then carry on with technology. "" Confucius six "and the good man home, such as irises and orchids into the room, long and not smell their fragrance, that is, carry on with technology."