湖の彼岸　－向こう岸の街、水面に映った社会、二重写しの自分－

There are many differnt theories regading what motivates human beings to act in the way that they do. On the one hand, there are those who argue that all human actions are motivated by selfisness. On the other hand, there are also those who contest such a view. I agree with the former position because it is supported by evidence from biology and psychology.