Agrippa was an ancient Pyrrhonian skeptic philosopher, likely active in the 1st century CE, known almost exclusively through the reports of Sextus Empiricus. He is credited with systematizing Greek skepticism into five powerful modes (tropoi) designed to induce suspension of judgment (epoché) on any philosophical claim.
Formulated the Five Modes of Agrippa: dissent, infinite regress, relativity, hypothesis, and circularity
Developed the Agrippan trilemma (Münchhausen trilemma), showing all justification leads to regress, circularity, or bare assumption
Systematized Pyrrhonian skepticism beyond the Ten Modes of Aenesidemus
Provided foundational arguments against the possibility of non-circular epistemic justification
Dive Deeper
Explore Skepticism→