借镜

借镜	jiè jìng	(Tw) to draw on (others' experience) / to learn from (how others do things) / lesson to be learned (by observing others)
借	jiè	to borrow / (used in combination with 给 or 出 etc) to lend / to make use of; to avail oneself of / (sometimes followed by 着) by; with
借	jiè	variant of 借
镜	jìng	mirror / lens