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 ideas I had about supernatural beings came to me the same way that my mathematical ideas did. So I took them seriously.
Smallholder farmers are the backbone of global agriculture; empowering them is our collective responsibility.
所谓智慧,就是拥有的问题比答案多。