创造一切非凡事物的那种神圣的爽朗精神总是同青年时代和创造力联系在一起的。

The best investment you can make is in yourself.

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.

我不想孤单，我想被单独留下。