可持续性不是终点，而是一个需要持续改进和创新的旅程。
Sustainability is not a destination but a journey that requires continuous improvement and innovation.
It is India that gave us the ingenious method of expressing all numbers by means of ten symbols, each symbol receiving a value of position as well as an absolute value.
经济理论提供工具，但现实世界的测试会完善它们。
The best time to plant a tree was 20 years ago. The second best time is now.
我们都是自己制造的囚徒，被我们讲给自己的故事所困。