To feel much for others and little for ourselves； to restrain our selfishness and exercise our benevolent affections， constitute the perfection of human nature.

现在如果送给别人很少的东西，却希望人家回报很多的东西，那么，人们就会怕你再送东西给自己了。 

The night is a great forest, but the stars are its trees.

A good learning algorithm should be able to generalize from a limited set of examples to unseen data.

解释：只有放弃一些事情不做，才能在别的一些事情上做出成绩。

Transparency builds trust, and trust is the foundation of any successful business.