"The ephemeral nature of my work is a reflection of life itself."
当随机化不可行时,匹配方法可以是一个强大的工具。
The poverty of our century is unlike that of any other. It is not, as poverty was before, the result of natural scarcity, but of a set of priorities imposed upon the rest of the world by the rich.
日常生活中的家事,儿童都非常喜欢参与。