Come up with a scenario of your visit to the court of Charlemagne: with whom and what could you talk about, what interesting things would you learn, what could you tell them?
This is a topic for home writing. (Please note that among the possible interlocutors there may be the scientist Alcuin from England, the ambassadors of the Caliph Haroun ar-Rashid and the Byzantine emperor Nicephorus I.)
Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.