Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

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。快乐是成功的关键。如果你热爱你所做的事情，你就会成功。

-- Albert Schweitzer 艾伯特·施韦策