最好的儿童书籍是那些让孩子思考的书籍。

The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion.

我们开采的每一块煤都在为某个家庭点亮灯光。

首要且最伟大的胜利是战胜自我；被自我征服则是最可耻、最卑劣之事。

The only person you should try to be better than is the person you were yesterday.

有时候要大胆，有时候要小心，一个聪明人知道什么时候该怎么做。

我们做出的选择定义了我们是怎样的人，而不是我们所面对的环境。