What ever you do, do it well. Do it so well that when people see you do it they will want to come back and see you do it again and they will want to bring others and show them how well you do what you do.
When you hold a piece of aggregate, you're holding millions of years of earth's history.
可持续性不是一种趋势，而是我们对后代的责任。
The real competition is not between products, but between business models.