Abstract: Taking the Agrippas five arguments, a concrete analysis on the cognitive roots of skepticism is conducted, whose common feature is taking a one-sided approach to issues. It is summarized finally that there are three levels of problems on epistemology, which also exist in skepticism.

Key words: skepticism, cognitive root, Agrippa

摘要： 以阿格里帕的五个论证为例，具体分析怀疑论的认识根源，这些认识根源的共同特征是片面地看问题；并总结出怀疑论在认识论上存在三个层次的问题。

关键词: 怀疑论, 认识根源, 阿格里帕