阅读的行为是一种勇气的行为。
"The act of reading is an act of courage."
I’m not a guy that’s going to let my respect down.
Sustainability in mining isn't an option—it's a necessity for our future.
社会系统是个人之间以及群体之间关系的系统。
The only time you fail is when you stop trying.
最难的事情是变得简单。