When Marcus Aurelius was a young man he was important enough to be given the best education sestertius could buy, in the form of a number of prominent tutors. One of those was the respected senator, Marcus Cornelius Fronto, who remained close to Marcus for the rest of his life. His letters to and from the Emperor, as well their relationship, give a rare insight behind the scenes of imperial power. Guest: Dr Callain Davenport (ARC DECRA Senior Research Fellow at the University of Queensland).