The debate between what is “public (Gong) and “private” (Si) has a long and rich history in Chinese thought. There has been a lack of research into the matter here in Taiwan however. This article proceeds from certain basic problems such as “The ideological structure of what is Public and Private”, “The Basis and Standardization of What is Public”, “The Up-surge of what is Private and its reasonable direction” and “The difference between Public and Private and how to transcend them”. In this article I probe to into the basic meaning of public and private and look at what each pursues. I explain their inextricable relationship, and offer and initial arrangement for their mutual existence and growth.