"Cogito":an Important Concept In Sartre’s Early Thoughts

Since the "cogito" thought was discussed by Descartes, lots of philosophers start their theoretical research through reinterpretation or criticism to the "cogito" thought. It is not exception of Sartre, his early philosophical theory is exactly transform from the thought of "cogito". This kind of transformation establish not only the important status in phenomenology of Sartre, but also the theoretical basis about his theory development. So the research of his early theory, having an important significance of the development of phenomenology and understanding of his whole theoretical system. This paper will divide into three parts:The first chapter:Through discuss the thought of "cogito" from Descartes to Husserl, this chapter will show the change from "cogito" thought to the field of transcendental consciousness, and the necessity of the being of transcendental consciousness domain.The second chapter:Through analyze the change of "cogito" thought by Sartre, this paper want to achieve a field of transcendental consciousness without ego, and have a deeper reaserch about the field of pre-reflective conscience that discussed by Sartre, about the reaserch of pre-reflective cogito.The third chapter:This chapter will give a solution about the dilemma faced by the "cogito" thought of Sartre that basis on the view of unity of consciousness.The "cogito" thought of Sartre has its well theoretical depth and the important contribution to the development of the theories of consciousness about phenomenological, but we also have to give a further expore to overcome the challenges and insufficiency from this consciousness theory.