The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land, is yet to come.

"Silence is as important as the words we speak."

Civilization as it is known today could not have evolved, nor can it survive, without an adequate food supply.

在采矿业的成功不仅仅在于资源的开采，还在于负责任地创造价值。

规模和价值效应在不同的市场和时间段中普遍存在。

一个国家的真正财富不仅在于其土地，还在于其水域。

The future of mining lies in balancing profitability with environmental responsibility.

教师必须既是学生的研究者，也是学科的研究者。