在文明社会中，唯一合法行使权力来逆行对方意愿的目的，是为了防止对他人的伤害。
The only purpose for which power can be rightfully exercised over any member of a civilized community， against his will， is to prevent harm to others.
Every town has its ghosts, and every ghost has its story.
化学之美在于它能够在分子水平上解释世界。
In mathematics, the art of proposing a question must be held of higher value than solving it.
If you want to be successful, you have to be willing to fail.