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。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
 消灭一个错误,其贡献等同于、有时甚至超过建立一条新真理或新事实。
The only real mistake is the one from which we learn nothing.