学史学的核心是“标准”问题，即用什么来衡量文学史研究。古希腊哲学家普罗泰戈拉说：人是万物的尺度。这句话道出了一个真理：一切的衡量最终都依赖于人，而人则是具体的，没有抽象的人类、人群，只有具体地生活在一定时间与空间之下的个人，这样“人是万物的尺度”其实... The core of learning history is the “standard” issue, that is, what to measure literary history research. Protagoras, the ancient Greek philosopher, said: Man is the measure of all things. This sentence tells the truth: all measures eventually depend on people, and people are concrete, there is no abstract human beings, people, only specifically living in a certain time and space under the individual, so that “people are The scale of all things ”actually ...