可持续性已不再是一种选择，而是我们对后代的责任。
Sustainability isn't a choice anymore—it's a responsibility we owe to future generations.
"There are no small lives, only small perspectives."
The concept of nondeterminism in computation is one of the most important ideas in computer science.
非确定性计算的概念是计算机科学中最重要的思想之一。