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.
唯一能战胜厄运的是努力工作。
真相总是不合时宜。
The greatest gift is the passion for reading.
可持续发展不是选择，而是对后代的责任。
Happiness is holding someone in your arms and knowing you hold the whole world.