"Books are empathy machines. They allow us to step into someone else's shoes and see the world through their eyes."

不要对那些你已敞开心扉的人紧闭双唇。

To one who has faith， no explanation is necessary.To one without faith， no explanation is possible.

传统方法蕴含智慧，但可持续发展要求我们在必要时超越它们。