Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
Continuous effort - not strength or intelligence - is the key to unlocking our potential.
当有人告诉你某件事是错的时候,他们通常都是对的。当有人告诉你如何解决这个错误的时候,他们通常都是错的。