To exist is to have a subjective existence.
通往地狱的路是由善意铺成的。
The act of writing is an act of optimism. You would not take the trouble to do it if you felt it didn't matter.
Legal positivism emphasizes the separation of law and morality.
今天我们播下的每一粒种子都是对明天粮食安全的投资。