To wrap up, each school of thought of the Greek Trilogy had their different epistemologies, and these epistemologies ultimately shaped their school of thought's understanding of rhetoric and the importance that they place on it.
The Sophists believed there were no such thing as absolute Truths, but even if there were absolute Truths, we as humans wouldn't be capable of comprehending them. They placed high importance on rhetoric, and relied on it to navigate the world by creating probable truths through dissoi logoi.
Plato & Socrates believed that there were absolute Truths, and that our souls already have known these absolute Truths from the noumenal world, but forget them when being situated in our bodies. They believe that to recall these absolute Truths, we must participate indialectics. Even though they renounced rhetoric, they used it. They just refused to acknowledge it.
Aristotle believed that absolute Truths existed, but we find them through science thus placing an emphasis on logic. He also recognized probable truths. He saw rhetoric as beneficial and thought that dialectics and rhetoric should be used together. He developed speech types and theAppeals.
Rhetoric is everywhere. It is important for us to learn about and understand not only the Greek Trilogy and their epistemologies, but also rhetoric in general because it is an important part of our everyday lives, even if we aren't aware of it. Every one shapes their own definition and view of rhetoric depending on the school of thought and epistemology they prescribe to. Nevertheless, each school of thought is important in understanding the world around us in terms of truth and knowledge through rhetoric.