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

——Albert Schweitzer

成功不是快乐的秘诀，快乐却是成功的秘诀。如果你热爱自己所做的事，那么你定会成功!

——非洲圣人 阿尔贝特·施韦泽