一个人的首要职责是为自己思考。
The first duty of a man is to think for himself.
"We are all atheists about most of the gods that humanity has ever believed in. Some of us just go one god further."
For those who do return back to the countryside, they find themselves very welcome locally, because with the knowledge, skills and networks they have learned in the cities, with the assistance of the Internet, they're able to create more jobs, upgrade local agriculture and create new business in the less developed market.
Sustainability in mining isn't an option—it's a necessity for our future.
A shortage is a sign that somebody is keeping the price artificially lower than it would be if supply and demand were allowed to operate freely.