Skepticism
Encyclopedia article; The Columbia Encyclopedia, Sixth Edition, 2009
Collections:
Religious Studies, Education, Psychology, History, Literature, Philosophy, Entire Library
...objective reality. The Sophists were the earliest group of skeptics. Protagoras taught the relativity of knowledge, and Gorgias held that either nothing could be known, or if anything were known, it could not be communicated. Pyrrho , regarded as the...