习惯的强度是其被强化次数的函数。
The strength of a habit is a function of the number of times it has been reinforced.
每一个结束都是一个新的开始。
我了解到你必须足够坚强才能独自站立，足够聪明才能知道何时需要帮助，并且足够勇敢去寻求帮助。
"Freeing yourself was one thing, claiming ownership of that freed self was another."
科学无国界，因为知识属于人类，是照亮世界的火炬。
We are the product of our evolutionary past.
Mathematics is not a spectator sport; to understand it, one must engage with it actively.
把你的手放在滚热的炉子上一分钟，感觉起来像一小时。坐在一个漂亮姑娘身边整整一小时，感觉起来像一分钟。这就是相对论。