2.Human nature His understanding of human nature is profound. In his opinion,human nature is seriously and permanently flawed. To better human life,enlightenment is needed, but to redress it is very hard.2. Human nature ❖ His understanding of human nature is profound. ❖ In his opinion, human nature is seriously and permanently flawed. ❖ To better human life, enlightenment is needed, but to redress it is very hard