成功经济发展的关键在于遵循由要素禀赋结构决定的比较优势。
I'm not a rapper, I'm a Native American legend.
那些疯狂到认为自己可以改变世界的人，才是真正改变世界的人。
The more we learn of the true nature of non-human animals, especially those with complex brains and corresponding complex social behaviour, the more ethical concerns are raised regarding their use in the service of man—whether this be in entertainment, as ‘pets,’ for food, in research laboratories or any of the other uses to which we subject them.