The greatest discovery of any generation is that a human being can alter his life by altering his attitude.
真正的进步发生在我们敢于质疑现状之时。
投资者应关注长期目标，忽略短期市场波动。
Swim upstream. Go the other way. Ignore the conventional wisdom. If everybody else is doing it one way, there's a good chance you can find your niche by going in exactly the opposite direction.
Sustainability must be the cornerstone of modern quarry operations, not an afterthought.