在你能爱别人之前，你必须先爱自己。
羞耻的基础不是我们的个人错误，而是我们必须成为别人希望我们成为的那种人的耻辱和屈辱。
It is much easier to change how you think by changing your behavior， than it is to change your behavior by changing how you think. Act out the change you seek.
知足的人不因利禄累害自己。
A good mathematician is someone who can see analogies between theorems. A great mathematician is someone who can see analogies between analogies.
