"The world is a stage, but the play is badly cast."
The magic number 150 suggests that the size of our social networks is limited by the size of our brains.
我饭吃但是如果不吃,对于饥饿是没有益处的。见到了贤能的人们而不去任用,这样对于衰弱的国家,也是没有益处的。