In a society where the best one can expect is a probability rather than absolute truth, the Sophists devise argumentative tactics to balance probabilities and likelihoods. By admitting the importance of the audience as equal players in the constructive process of refining reason, the Sophists have a crucial role in the development of rhetoric. The disagreement between Euathlus and his teacher Protagoras is one of the many supposed paradoxes that have been brought down to us from the Greeks (Smith, 1990).