乌格是当代为数不多的、公开为知识论怀疑主义辩护的著名哲学家。乌格为怀疑主义辩护的理路是:以“水平的”和“弯曲的”为例,来说明绝对术语与相对术语的不同,并把“确定性”当作绝对术语,来证明怀疑主义的正确性。乌格借绝对不可错论来为怀疑主义论证的这种方式,是怀疑主义论证的一般模式。研究乌格的怀疑主义论证,有助于我们正确揭示怀疑主义产生的根源。 Ugh is one of the few contemporary philosophers who openly defended epistemological skepticism. Ugh’s defense of skepticism is based on the principle of “horizontal” and “curved” to illustrate the difference between absolute terms and relative terms and treat “certainty” as an absolute term, To prove the correctness of skepticism. This is the general mode of skeptic argumentation that Ugh’s justification of skepticism by the undeniable theory. Studying Ugh’s skepticism helps us correctly reveal the root causes of skepticism.