不要害怕失败，要害怕不去尝试。

It is a curious subject of observation and inquiry, whether hatred and love be not the same thing at bottom.

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

权力不是给予你的。你必须自己去夺取。