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。幸福才是成功的关键。如果你热爱你所做的事，你就会成功。
The world owes all its onward impulses to men ill at ease. The happy man inevitably confines himself within ancient limits.
预测未来的最好方法是创造未来。