The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.
历史的终结将是一个非常悲伤的时刻。为了纯粹抽象的目标而愿意冒生命危险的斗争，全球意识形态斗争所唤起的勇敢、勇气、想象力和理想主义，将被经济计算、无休止的技术问题解决、环境关注和复杂消费者需求的满足所取代。
Randomized evaluations can help us understand what works and what doesn't in development.
"The dead are always with us, and we are always with them."
人们害怕死亡，就像孩子害怕黑暗一样；而且，正如孩子对黑暗的自然恐惧会受到各种故事的加剧一样，人们对死亡的恐惧也是如此。
The most successful businesses are those that put people first.
每一个实验都是向着理解生命复杂机制迈进的一步。
——在广州中国国民党恳亲大会演说，1923年10月15日