关键词: 认识论, 嬗变, 真理性原则, 价值性原则, 主体性原则

Abstract: The author observes that there are two basic principles in human activity, namely, the principle of truth and the principle of value. The history of human practice and human cognition coincides the history of development of the principles of truth and value. The principle of subjectivity, then, is a primary principle of human activity. A remarkable contribution of philosophical revolution by Marx is that he proposed the principle of subjectivity based on practice. This has corrected the defect of negligence of subjectivity by old materialism, and redressed the idealist denial of the principle of subjectivity based on objective world. The author maintains that transmutation in cognition from principle of truth and principle of value to the principle of subjectivity is in fact inevitable. Therefore, it is important to study the principle of subjectivity so as to establish a subjectivity principle that will benefit human recognition and practice. Only in this way can interests of mankind as a whole be secured.

Key words: epistemology, transmutation, principle of truth, principle of value, principle of subjectivity