We must mine coal responsibly today so that our children inherit both energy security and a healthy environment.

哲学不是一种学说，而是一种活动。

我们知识的边界就是我们想象力的前沿。

The greatest use of a life is to spend it for something that will outlast it.

"The most beautiful people we have known are those who have known defeat, known suffering, known struggle, known loss, and have found their way out of the depths."

"Language is the first casualty of power."

The work of art is a fragment of the absolute.

事实是，我们都是自己思想的囚徒。

帮助地球最有效的方法就是停止食用动物。