永远不要停止学习，因为世界永远不会停止变化。
Never stop learning because the world never stops changing.
无物可自虚空而生。
"The poem is a place where the unsayable can be said."
过去是幽灵，未来是梦，我们拥有的只有现在。
Never be satisfied with where you are; always strive for better.
Go for a business that any idiot can run – because sooner or later, any idiot probably is going to run it.
译文：世人有时会遇到意想不到的福运，有时也会遇到意外的灾祸。
采矿效率来自于持续改进，而不仅仅是重大突破。