关注金字塔底层的企业可以在服务穷人的同时创造盈利业务。
The founders of a new colony, whatever Utopia of human virtue and happiness they might originally project, have invariably recognized it among their earliest practical necessities to allot a portion of the virgin soil as a cemetery, and another portion as the site of a prison.
This is the map that shows us where we're going. And this is the map that shows us where we've been. And it's never ever ugly.