Don't give up easily, persistence is victory.
古代善于写诗的人,并不自认为是诗人。他们胸中所积累的,高深、广阔、悠远;而偶然通过诗歌表达出来,那么诗歌也因此变得高深、广阔且悠远。
It is always good to have a problem that you cannot solve. It means you have something to work on.