可持续发展不再是选择，而是生存的必需。
Sustainability is no longer an option; it's a necessity for survival.
可持续发展不是减少伤害，而是创造更多益处。
No moral system can rest solely on authority.
I found strength in my vulnerability.
数学中最深刻的问题往往源于最简单的问题。
The dairy industry must adapt to changing consumer preferences.
一个好的数学家总是准备好进行概括。