Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
成功不是幸福的关键。幸福是成功的关键。如果你热爱你所做的事情，你就会成功。
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.
有技巧的人劳累，聪明的人忧虑，没有本事的人没有追求。