"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
在糟糕的时候抱有希望不仅仅是愚蠢的浪漫。这是基于人类历史不仅是残酷的历史，也是同情、牺牲、勇气和善良的历史。
预测未来的最好方法就是自己创造未来。
The faster we live, the less we feel.
Psychology should concern itself not with static elements, but with the dynamic interplay between organism and environment.
False facts are highly injurious to the progress of science, for they often endure long.
The beauty of mathematics only shows itself to more patient followers.
