可持续性不是一种趋势，而是我们对后代的责任。
Sustainability isn't a trend—it's a responsibility we owe to future generations.
When I look at the world I'm pessimistic, but when I look at people I am optimistic.
战略是将有限的资源延伸以适应雄心勃勃的抱负。
学习新编程语言的唯一方法就是用它来编写程序。