No sensible decision can be made any longer without taking into account not only the world as it is but also the world as it will be.
如果只考虑世界现在的样子，而不考虑世界将来怎么样，便再也做不出明智的决断。
——艾萨克·阿西莫夫（Isaac Asimov，美国著名科幻作家）
