孔子说:“老好人是败坏道德的人。”
Climate change isn’t a distant problem—it’s here, and forests are our first line of defense.
The selfish gene theory is not a theory about selfishness in the everyday sense. It is a theory about the evolution of behavior.
If you think you saw a mouse, you did. And, if there is one, there are more.
数学的美只对那些更有耐心的追随者展示。