The only limit to our realization of tomorrow will be our doubts of today.
每个故事都是谎言,直到有人相信它。
我们生产的每一桶石油都应着眼于最小化我们的足迹。
Development economics is ultimately about improving people's lives.
50岁重建事业并不容易——但值得的事情从来都不简单。
记忆是个棘手的东西,它既可以是祝福也可以是诅咒。