每个行为都有它的乐趣和它的代价。
Every action has its pleasures and its price.
The key to great storytelling is to find the universal truth in the specific.
幸福不是现成的东西，它来自你自己的行动。
晏子春秋
在科学中，失败不是成功的对立面，而是通向成功的垫脚石。