El éxito no se mide por la fama o el dinero, sino por la felicidad que encuentras en lo que haces.
想要移山的人，先从搬走小石头开始。
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.