Optimists tend to interpret their troubles as transient, controllable, and specific to one situation. Pessimists, on the other hand, believe that their troubles last forever, undermine everything they do, and are uncontrollable.

The key to trading success is to be patient and disciplined.

我们曾许下这样的诺言：不作恶。我要让我的公司去做对用户、对顾客、对所有人有利的事情。所以，如果我们能坚守这个诺言，我们就能做出一番有益的成就。