Gorgias z Leontín : Gorgias argues that persuasive words have power (dunamis) that is equivalent to that of the gods and as strong as physical force. In the Encomium, Gorgias likens the effect of speech on the soul to the effect of drugs on the body: "Just as different drugs draw forth different humors from the body – some putting a stop to disease, others to life – so too with words: some cause pain, others joy, some strike fear, some stir the audience to boldness, some benumb and bewitch the soul with evil persuasion