"The truth is rarely pure and never simple."
真相很少是纯粹的，也从不简单。
In man-machine symbiosis, it is man who must adjust: The machines can't.
The mining industry must lead by example in safety, sustainability and social responsibility.
没有完美的知识可以称为我们与生俱来的；唯有从经验中获得的知识才是真正的知识。