改变的秘诀在于集中所有精力不是与旧事物斗争，而是建设新事物。

我们被警告不要向这个民族的人提供虚假的希望。但美国不呢神就是个不可能的故事，从来没有任何希望是假的。

成功的关键是在生活的各个方面不断成长。

没有刻苦钻研的精神，就不能明辨事情的道理；没有专心致志的工作，就不会取得显赫的成绩。

The first fruit of this imagination - and the first lesson of the social science that embodies it - is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

为你，千千万万遍。