The only limit to our realization of tomorrow is our doubts of today.
实现明天的唯一限制是我们今天的疑虑。
The things that make us human are the things that make us vulnerable.
我们必须为下一代留下健康的水域。
下一次绿色革命不会仅仅来自实验室,它将来自世界各地的农田。