2 million-1 million years ago, during the evolution from apes to modern Homo sapiens, the brains of our ancestors evolved to support cooperation to support hunting. This made the memory and thinking centers in the prefrontal cortex of human ancestors more developed than those of other primates. As groups become more powerful than individuals, and the brain evolves the ability to manage larger groups, competition between groups becomes more important than competition between individuals, and groups with more cooperative individuals develop better. This evolution has led to the development of altruistic consciousness, ethics, conscience and dignity.
The main content of this text is the evolution of the brain in group life can inspire virtue.