From the perspective of “Frog”, the 30 years when the population of China increased from approximately 540 million in 1949 to surpass a billion in 1981 were anxious times. If this increase continued, the possibility of the country’s bankruptcy could be imagined. This possibility made everyone anxious; however, suppressing this increase could avoid the risk.
　American philosopher, John Rolls (1921–2002), has two principles regarding justice. One is fundamental free equality, and the other is social and economic equality. Free equality is the justice of possible agreement with each other and can replace the right social adjustment with the equality of social economics. That is, if one could satisfy everybody, they would move closer to the principle of Rolls. Therefore, the writing part of the brain of “Frog” becomes “justice and equality”.
　The brain activity of justice is adamant. The character is presumed earnestly and pushed towards something with force. The reading part of the brain of “Frog” is “planned childbirth and reality”, the writing part of the brain is “justice and equality”, and the synergic metaphor of “Frog” is “Mo Yan and justice”. This is to lead to risk avoidance.

花村嘉英（2022）「莫言の「蛙」でシナジーのメタファーを考える」より　translated by Yoshihisa Hanamura