—— 请按键盘 空白键 开始游戏 ——

随机评估可以帮助我们了解发展中哪些措施有效,哪些无效。
Randomized evaluations can help us understand what works and what doesn't in development.
"In a world that's changing really quickly, the only strategy that is guaranteed to fail is not taking risks."
The past does not have to define the future.
If you don't know where you are going, any road will get you there.
A garden must combine the poetic and the mysterious with a feeling of serenity and joy.
So that morning in 1962 I told myself: Let everyone else call your idea crazy . . . just keep going. Don’t stop. Don’t even think about stopping until you get there, and don’t give much thought to where “there” is. Whatever comes, just don’t stop.
我不是现实,我是幻想。