伦理学是对什么是善的一般性探究。

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.

Innovation is the ability to see change as an opportunity, not a threat.

文学的目的是让舒适的人不安，让不安的人得到安慰。

我对我是谁感到满意，对我的身体和思想感到满意。

If you are not willing to learn, no one can help you. If you are determined to learn, no one can stop you.