儿童的进步不是取决于年龄，而是取决于能够自由地观看他周围的一切。

你不写的故事，就是那个萦绕你的故事。

It is not from the benevolence of the butcher， the brewer， or the baker that we expect our dinner， but from their regard to their own interest.

Safety is our top priority in all operations.

实现明天的唯一限制是我们今天的疑虑。