"The serve is the most important shot in tennis."

Nature is the best teacher; it has already done the experiments, we just have to interpret them.

To travel is to discover that everyone is wrong about other countries.

激励措施的微小变化可以导致行为的巨大变化。

每本书都是一次全新的创作冒险。

Every discovery in science is built upon the work of countless others before us.

英雄是一时的，但传奇是一世的。