真正的喜悦精神、崇高感、超越人类的感觉，这是最高卓越的试金石，在数学中肯定能找到，就像在诗歌中一样。
The true spirit of delight, the exaltation, the sense of being more than Man, which is the touchstone of the highest excellence, is to be found in mathematics as surely as in poetry.
阅读是一个孩子可以学到的最重要的技能。
生活不是一个人所经历的，而是一个人所记住的以及如何记住并讲述它。