The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

电池回收利用是新能源产业可持续发展的关键环节。

一本好书的标准在于它能让读者感到不安的程度。

My whole life has been a struggle against fear and anxiety.

小说是未完成、未解决的艺术。