诗歌不是奢侈品，而是精神的必需品。

I think the only free man can feel this kind of excitement, a free man step on a long journey, towards the uncertain future.

你的工作将填满你生活的一大部分，唯一让你真正满意的方法是做你认为伟大的工作。

The great philosophers are the great lovers of truth.

Coal is not just a commodity, it's a commitment to America's future.

In the end, we will remember not the words of our enemies, but the silence of our friends.

幸福并不容易。很难在我们内心找到它，更不可能在别处找到它。