Answer:
In this book, "The "Country of the Blind", Wells tries to justify, that contrary to the popular saying - a one-eyed man is king in the country of the blind; only blind men can lead blind men.
The inference to be drawn is this: the rationality of the human mind and its ability to understand the world or its environment is limited to its senses. The ability of humans to grasp a higher truth is further limited by the type of conditioning that happens to it over time. In other words, time has a way of shaping us intellectually regardless of what new information, new perspectives or paradigms that have crop up.
Explanation:
The blind men had over 14 generations, come to accept their reality as The Reality. They had created a way of life (which suited them) around this alternate reality in which they could not see, but compensated for it with enhanced hearing, increased sense of smell and touch.
Because a man who had complete vision could not relate to what it felt like to have these "enhanced" abilities, Nunez's attempt to explain his world to them and justify its superiority over what they perceive proved abortive.
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