所谓道德抑或不道德的书是不存在的。书就只有分写得好、写得差，仅此而已。
There is no such thing as a moral or an immoral book. Books are well written, or badly written. That is all.
Change starts with a single step, but it requires persistence to reach the destination.
理论就像网：只有撒网的人才能捕获。
Inflation is a very simple idea, but it explains a lot of things.