《韩非子·难四》
不贤的人蒙蔽君主，不足以危害君主的明察；现在君主不加以了解而让贤人蒙蔽自己，那就一定危险了。
不肖者炀主，不足以害明；今不加知而使贤者炀主己，则贤矣。
The unworthy deceiving the ruler is not enough to cause harm to the ruler’s clear vision; now, for the ruler to not investigate and let the worthy deceive him, that will be extremely dangerous. 