Small actions, multiplied by millions, can transform the world.
微小的行动，乘以数百万，就能改变世界。
Choose the life that is most useful， and habit will make it the most agreeable.
I'm never going to change so much that people can't recognize me.
翻译：事情的难易不在于规模大小，而在于是否抓准时机，顺势而为则事半功倍，逆势而行则事倍功半。
心理学的研究就是研究生活的策略。