数学家的模式，就像画家或诗人的模式一样，必须是美丽的；思想，就像颜色或文字一样，必须以和谐的方式结合在一起。
The mathematician's patterns, like the painter's or the poet's, must be beautiful; the ideas, like the colors or the words, must fit together in a harmonious way.
The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.
如果你没有失败，说明你还不够努力。
It's not about how hard you hit. It's about how hard you can get hit and keep moving forward.
没有艺术；没有文学；没有社会；最糟糕的是，持续不断的恐惧和暴力死亡的威胁；人的生活孤独、贫困、肮脏、野蛮而短暂。
教育就是激发生命,充实生命,协助孩子们用自己的力量生存下去,并帮助他们发展这种精神。”。
