一项发明可能价值连城，但对发明者却毫无价值。

Silence can be as powerful as words, if you know how to listen.

The office of President is great, but the man who holds it is not.

谁也没有意识到，有些人耗费了极大的精力，仅仅只为了成为普通人。

如果我们想保护森林，就必须先了解它们。

儿童擅长在自由活动中建立规律。

"The major threats to survival that our ancestors faced - predators, starvation, disease - left their mark on our fears and anxieties."

我们行业最有价值的资源不是地下的资源，而是让事情发生的人。