To write is to exorcise the demons that live within us.
自然实验可以为经济问题提供有价值的见解。
To write is to confront the darkness within.
真正的创新来自于对现有问题的深刻理解。
不是有没有时间的问题,而是愿不愿意挤出时间的问题。
The most valuable resource in agriculture is not the crop, but the people who grow it.