生活的目的不是快乐。它是有用的，是光荣的，是富有同情心的，是让你活得有意义并且活得好。
The purpose of life is not to be happy. It is to be useful, to be honorable, to be compassionate, to have it make some difference that you have lived and lived well.
矿工最伟大的工具不是他们的设备，而是他们的判断力。
You know what it’s like to wake up in the middle of the night with a vivid dream? And you know that if you don’t have a pencil and pad by the bed, it will be completely gone by the next morning. Sometimes it’s important to wake up and stop dreaming. When a really great dream shows up, grab it.
我决定既然我要下地狱，那就彻底一点。
你无法管理你无法衡量的事物。
The more the division of labor and the application of machinery extend, the more does competition extend among the workers, the more do their wages shrink together.