人的思想是了不起的,只要专注于某一项事业,就一定会做出使自己感到吃惊的成绩来。
The beauty of mathematics is that it allows us to see patterns and structures in the world that are not immediately obvious.
The mathematician does not study pure mathematics because it is useful; he studies it because he delights in it and he delights in it because it is beautiful.
抽象的目的不是含糊不清,而是创建一个新的语义层次,在这个层次上可以绝对精确。