Pyrrho

Then Pyrrho proposed his agnosticism which negated the possibility of all knowledge and was regarded as a final conclusion of ancient skepticism.

皮浪的否定一切知识的可能性的不可知论是古代怀疑论的最后结论。

Many of the etymologies I saw make reference to someone called Pyrrho of Elis who lived about 2, 300 years ago and is seen as originating a skeptical philosophy.

我所查询的词源学资料中，不少都提到了生活在2300年前的艾利斯的皮洛（Pyrrho of Elis），说他是怀疑论哲学的鼻祖。