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。
质量不是一种行为,而是一种习惯。
History does not long entrust the care of freedom to the weak or the timid.
The glory of the heavens is infinite to us.
中国金融衍生品的发展应借鉴国际经验,但也需适应本地条件。