自然界和道德世界是人类理性关注的双重对象。
You have to be willing to sacrifice, to put in the time and effort.
我不喜欢赌博，但如果有一件事我愿意赌，那就是我自己。
The principal effect of the progress of society is to increase the quantity of wealth, and the power of distributing it.
Popularity is the crown of laurel which the world puts on bad art. Whatever is popular is wrong.