By the sweat of your brow, shall you get bread to eat. So knowledge or wisdom or perhaps moral freedom seems to come at a very high price.
你必须汗流满面，才得以糊口。所以，获取知识、智慧和道德自由似乎需要极大的代价。
2
Both popular and high-brow.
都是流行的和文化修养高的。
3
(V/O) ) Though this set of ancient musical instruments once stood for the royal court high-brow music, it walked into the ordinary folks and became people's pastime as time passed by.