以其昏昏, 使人昭昭 [- qí hūn hūn shǐ rén zhāo zhāo]with one's own darkness and confusion to expect to make others see the light; those in the dark try to light the way for others:
•¶以其昏昏, 使人昭昭是不行的。 Those in the dark are in no position to light the way for others.; Persons in the dark cannot light the way for others.