the eye cannot see its lashes——lack self-knowledge ❍ 远求而近遗，如～。(王安石《临川集·再寄蔡天启》诗)Seeking from afar while missing things close at hand，丨Tis like the eye not seeing its lashes.
目不见睫mù bù jiàn jié
睫：睫毛。眼睛看不见睫毛。比喻只看见远处而看不到近处；也比喻没有自知之明。lack self-knowledge, not know oneself