在数学中,提出问题的艺术必须比解决问题更有价值。
In mathematics, the art of proposing a question must be held of higher value than solving it.
Global hunger won't be solved by charity alone - it requires systemic change.
最好的儿童书籍是那些让孩子思考的书籍。
如果你愿意,我们可以回到那个山洞。
最好的故事是那些让我们质疑自己现实的故事。