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Optimism is a learned skill.
乐观是一种可以学习的技能。
有时候我真想放弃,但想到会让很多人失望,我就坚持下来。
The only thing that can make you happy is your own heart.
A person may cause evil to others not only by his actions but by his inaction, and in either case, he is justly accountable to them for the injury.
最好的投资者是那些能够控制情绪并做出理性决策的人。