True sustainability means leaving the land better than we found it for future generations.
真正的可持续性意味着为子孙后代留下比我们发现时更好的土地。
The best way to predict the future is to create it.
The spread of liberal democracy around the world is not inevitable, but it is the most likely outcome.
历史不仅仅是关于过去；它是关于过去如何塑造现在。
没有行动，思想的花朵永远不会结出果实。