The silence between the notes is as important as the notes themselves.

The world loved man when he smiled. The world became afraid of him when he laughed.

世界上最好和最美丽的东西是看不见甚至摸不到的——它们必须用心去感受。

采矿技术的创新不是为了取代人，而是为了让他们能够更好、更安全地完成工作。