Sustainability isn't an option anymore—it's a necessity for any responsible mining operation.

We still have a long way to go. But we are moving in the right direction.

译文：和朋友交往，我们应该学习他的优点和长处，这样才能从中受益；读到古代圣贤的良言警句，必须做到身体力行，这样才算真正地把书读透了。赏析：三人行必有我师，这个世上没有十全十美之人，我们只有学习别人的优点，才能不断完善自己的人格。读书不仅要记住书中的知识，更要学以致用。

市场永远是对的。

The best literature is that which disturbs, which unsettles, which refuses to console.

Life is not what one lived, but what one remembers and how one remembers it in order to recount it.

【原文】曾子有疾，召门弟子曰：“启予足！启予手!《诗》曰：‘战战兢兢，如临深渊，如履薄冰。’而今而后，吾知免夫！小子。”【译文】曾子得了重病，召集他的弟子们说：“(掀开被子)看看我的脚!看看我的手(有没有毁伤之处)！《诗经》中说：‘小心翼翼，就像站在深渊之旁，就像踩在薄冰之上。’从今以后，我知道(我的身体)再也不会受伤了。弟子们!”