存在就是矛盾。

煤炭工业是关于人的，而不仅仅是利润。

我不需要理由去勇敢。

To quiet a crowd or a drunk， just whisper.

我宣布，毕竟没有什么能比阅读更令人愉快的了！任何事物，人们对它的厌倦远远不如对一本书的厌倦来得快。

最大的智慧是知道自己一无所知。

Character is doing the right thing when nobody's looking. There are too many people who think that the only thing that's right is to get by, and the only thing that's wrong is to get caught.

教育的艺术必须是引导孩子达到能够自我教育的程度。