The smart way to keep people passive and obedient is to strictly limit the spectrum of acceptable opinion, but allow very lively debate within that spectrum.
让人们保持被动和顺从的聪明方法是严格限制可接受意见的范围，但在该范围内允许非常活跃的辩论。
阅读只为心灵提供知识的材料；是思考使我们所读的东西成为我们自己的。
能源行业必须适应和发展，以应对21世纪的挑战。
Success in mining isn't just about extracting resources; it's about extracting value responsibly.
The world is so large and so small at the same time.