我们今天种植的每一棵树都是为我们永远不会见到的后代留下的遗产。
I can never be safe; I always try and go against the grain. As soon as I accomplish one thing, I just set a higher goal. That's how I've gotten to where I am.
Global challenges require global thinking and local action.
采矿业必须发展以满足不断变化的世界的需求,否则将被淘汰。