His greatest contribution at the beginning period of the Leftist Writers League was his interpretation of "Marxist realism" whereas his bias led to the "close-door leftism", reflected especially in the debate with the "free person" and "the third kind.

On cultivating of libero s judgement ability;

libero, as a product of volleyball development, exerts an important influence in volleyball competition.

Standard DLT and video interpretation are employed in this article to make a kinetic comparative analysis of the flowing ball receiving technique of Li Ying who used to be the libero player of the national team and Zhang Na who is the libero player of the national team in the hope of revealing the implied kinetic law.

Through using the method of literature investigation,questionnaire,mathematical statistics and video analysis,this paper made study on the main influencing factor of the competitive ability of Female volleyball libero player.

In order to be a freeman,Spinoza reflected aspects of being a freeman.

Characteristics and development of the volleyball defense lineup that bases its core on the free man;

How to resolve the free man problem in PE choice teaching;

The error rate but low in total level of the whole brigade, This is the full elucidation of “free man” rises in the game important the function that can t act for, The result is very obvious, for the whole brigade the exalt.

The modern education value of the populace′s free personality;

In terms of man,it means cultivating an ideal personality with truth,kindness and beauty,which is civilized free personality.

By the perspective of Ethics ,this essay discusses the limitation of the quest for the most virtuous, the happiest and justice; advocates developing free personality of the ordinary people as the goal of moral education in the current era.