书籍的魔力在于它们可以带你去任何地方。
证明的严谨性将数学与所有其他科学区分开来。
Sometimes, it's not that the other person doesn't care about you, but that you care too much about them.
赏赐并不能让人欢喜,责罚也不能让人畏惧。
遗忘是失去自己的一部分,而记住则是让它继续存在。