Rightly so, Cicero's special achievement in his work "On the Orator" has been seen in the way he connected the intellectual heritage of Greece with the realities of Roman life, merging both into a new unity based on his personal views and experiences. This identifies the essential sources that converge in this work: Greek rhetorical theory, the practice of Roman eloquence, and Cicero's personal development, the stages of which essentially reflect the milestones in the career of a great orator.