【不耻下问】〖bù ch xià wèn〗[not feel ashamed to ask and learn from one's subordinates; be modest enough to consult one's inferiors; be open-minded in study; condescend to ask for advice]

不可多得盈注虚，

耻言人过宽仁度。

下交不渎长补短，

问寝视膳孝父母。