In mathematics, the art of proposing a question must be held of higher value than solving it.
在数学中，提出问题的艺术必须比解决问题更有价值。
勇气是面对恐惧时的坚持。
解放自己是一回事，拥有那个解放了的自我则是另一回事。
A culture of experimentation and learning is essential for growth.
The only thing to do with good advice is to pass it on. It is never of any use to oneself.
Children have never been very good at listening to their elders, but they have never failed to imitate them.