世界上发生的任何事情，其意义无非是某些极大或极小值。

译文：思念那个人，就到了他的家乡;他的故乡还在，他的人已经逝去了。

The task of art today is to bring chaos into order.

Leaders must have the courage to make tough decisions for long-term benefits, even if they are unpopular in the short term.

可持续性不是一种趋势，而是能源的未来。