一个人的幼儿时期，其实就是一种不断习得能力的过程，这个周期性的刺激，将带给儿童无限的欢乐和乐趣。

In mathematics, the art of proposing a question must be held of higher value than solving it.

A place is more than its geography; it’s the stories that live there.

There are unknown forces in nature; when we give ourselves wholly to her, without reserve, she lends them to us; she shows us these forms, which our watching eyes do not see, which our intelligence does not understand or suspect.

组织的质量由其产品的质量决定。