我们对未来持乐观态度,但我们知道仅靠乐观是不够的。
所有模型都是错误的,但有些是有用的。
可持续性不是一种选择;它是我们行业未来的必需品。
The only constant is change, continuing change, inevitable change, that is the dominant factor in society today. No sensible decision can be made any longer without taking into account not only the world as it is, but the world as it will be.