神奇数字150表明，我们社交网络的规模受限于大脑的容量。
The magic number 150 suggests that the size of our social networks is limited by the size of our brains.
The truth is that we are all alone in the world.
你越爱自己，就越不能容忍废话。
小说不仅仅是一个故事；它是一面映照社会的镜子。