那么,你认为我是什么样的人呢?
Thought is the most difficult task, which is why so few engage in it.
通过行动来验证你的思想。
避免痛苦的唯一方法就是不要有足够的闲暇去思考自己是否幸福。
The only limits you have are the limits you believe.
Mathematics is the language with which God has written the universe.