所以,在收成好的年头,百姓就仁义善良;遇到荒年,那么百姓也会吝啬而凶恶。 
成为人类就是有缺陷,而有缺陷才是真实的。
The metropolis exacts from man as a discriminating creature a different amount of consciousness than does rural life.
Collaboration is key to solving the biggest challenges in science.