可持续发展不再是可选项；对于任何负责任的矿业公司来说都是必需品。
No man really knows about other human beings. The best he can do is to suppose that they are like himself.
"Writing is a form of therapy; sometimes I wonder how all those who do not write, compose, or paint can manage to escape the madness, melancholia, the panic and fear which is inherent in a human situation."
学习新编程语言的最好方法是用它编写程序。
科学中最重要的不是获得新的事实，而是发现新的思考方式。
A good novel should be both a mirror and a window.
