Eager and intense desire is the mainspring of all effective effort.  

Whenever you find yourself on the side of the majority, it is time to pause and reflect.

There is no necessary connection between law and morality.

文学中的每个词都是一颗种子，可以在读者的心中长成一片思想的森林。

科学的进步是人类集体努力的结果。