On the other hand, wise men (especially protagoras) oppose the theory of moral genius and emphasize that morality is possible for everyone and can be acquired through study and training. The wise men have made outstanding contributions to the development of Greek educational thought. It is precisely because of the emergence of wise men that Greek educational thought really took shape. This is mainly manifested in the fact that most of the basic problems discussed in Greek educational thought were put forward by wise men and discussed in different degrees in theory.