Before you could reason about the world, you had to learn to reason at all.
Ancient and medieval education didn’t start with facts to memorise. It started with three tools for handling language and argument themselves: grammar (how words mean), logic (how arguments hold together), and rhetoric (how ideas move an audience). Together these were the trivium — literally the “three ways” or “three roads” — the entry-level stage of the seven liberal arts.
The structure traces to Plato and Aristotle’s own accounts of a basic education preparing a student for the higher pursuit of wisdom, later systematised and passed into Roman, then medieval Christian education — where Augustine adapted it toward mastering the meaning of scripture. By the rise of the medieval universities in the 12th century, a student who completed the trivium moved on to the quadrivium’s four mathematical arts, and only after both was philosophy — the discipline’s actual end goal — considered within reach.
Source: Leff, G. (1991). “The Trivium and the Three Philosophies.” In The Cambridge History of Later Medieval Philosophy (Cambridge University Press).