A computer program does what you tell it to do, not what you want it to do.

What appears good to one may appear evil to another， and vice versa.

Economic theory provides the tools, but real-world testing refines them.

For beautiful eyes, look for the good in others; for beautiful lips, speak only words of kindness; and for poise, walk with the knowledge that you are never alone.

"The most effective way to destroy people is to deny and obliterate their own understanding of their history."

快乐的人，只有快乐的人，是能把今天称为自己所有的那个人。