It is widely agreed that Parmenides invented extended deductive argumentation and the practice of demonstration, a transformative event in the history of thought. But how did he manage this seminal accomplishment? In this book, Benjamin Folit-Weinberg finally provides an answer. At the heart of this story is the image of the hodos, the road and the journey. Brilliantly deploying the tools and insights of literary criticism, conceptual history, and archaeology, Folit-Weinberg illuminates how Parmenides adopts and adapts this image from Homer, especially the Odyssey, forging from it his pioneering intellectual approaches.