我已经注意到有爬山习惯的年轻人长大后通常有所作为。

挑战是伪装的机会，勇敢地拥抱它们。

At the close of our studies， we knew all the past of physics， but nothing of the present and the future.

I’ve had people look down on me and put me down because I didn’t look like them—but that didn’t stop me.

写作是一种爱的行为，一种对文字的完全奉献。

我们学得越多，就越意识到自己的无知。