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。幸福是成功的关键。如果你热爱你所做的事情，你就会成功。
我拥抱挑战，因为它们让我更强大。
【译文】用心算计别人反而时时出错，退一步考虑事情路子就会很宽。
Banks should return to their roots and focus on serving the real economy.
数学的真正乐趣在于发现的过程，而不仅仅是结果。