板块构造理论是地质学的统一理论。
We have to continually be jumping off cliffs and developing our wings on the way down.
You don't build a business. You build people, and then people build the business.
采矿业有责任为后代留下积极的遗产。
可持续性不是一种选择;它是我们星球未来的必需品。