The great use of a school education is ________ to teach you things ________ teach you the art of learning.
【译文】学校教育的作用与其说是教给你知识不如说是教给你学习的方法。
not so much... as...“与其说……不如说……”。注意as前后的两个成分必须对等，可以是名词、不定式或介词短语，如His success is not so much by talent as by energy。