The only way to deal with the future is to function efficiently in the now.
Thinking is a form of computation.
The value of a commodity, or the quantity of any other commodity for which it will exchange, depends on the relative quantity of labor which is necessary for its production, and not on the greater or less compensation which is paid for that labor.
现代采石必须将地质学的智慧与工程的创新相结合。
The world needs reliable energy, and coal still plays a critical role in providing it.