The strongest principle of growth lies in human choice.
Your self-worth is determined by you. You don't have to depend on someone telling you who you are.
I'm not here to be liked; I'm here to be heard.
道德修养的最高境界,是认识到我们必须控制自己的思想。
失败是成功之母。但重要的是从失败中学到什么。