您认为自己知道什么时候可以学习，更确定什么时候可以写作，甚至更多的时候可以教书，但是可以确定何时可以编程。
You think you know when you can learn, are more sure when you can write, even more when you can teach, but certain when you can program.
There is no such thing as society: there are individual men and women, and there are families.
一个人生命中最孤独的时刻是当他们看着自己的整个世界分崩离析，而他们所能做的只是茫然地凝视。
Sustainability in mining isn't an option—it's a necessity for our future.
"I'm not a role model, I'm a role model's role model."
Democracy means simply the bludgeoning of the people by the people for the people.
Innovation is seeing what everybody has seen and thinking what nobody has thought.