Socrates
I like to read about the dialogues of Socrates, because he offers insight into ancient Greece, morality, and questions of our existence, but I never agree with him. His conclusions seem based upon false assumptions. He takes shortcuts in his reasoning. At the end of one of his arguments, I never feel satisfied. I don't feel he has answered all possible objections, not by a long shot. His uncritical followers always reply "Yes, Socrates," or "No, Socrates." I wish someone had been around to offer a rigorous rebuttal to his proofs. I would like to see how he would respond. I think if Socrates were resurrected and introduced to the modern world and especially modern science, his opinions would change.