Academic Skeptics are a group of philosophers from the ancient school of Skepticism, particularly active during the Hellenistic period. They questioned the possibility of certain knowledge, arguing that human perception and reasoning are often flawed. This led them to conclude that we can never truly know anything with certainty. The most notable figure among the Academic Skeptics was Arcesilaus, who taught at the Academy in Athens. He emphasized the importance of suspending judgment on beliefs and opinions, advocating for a life guided by inquiry rather than dogmatic assertions. Their ideas influenced later philosophical movements, including Pyrrhonism.