ABSTRACT
As he addressed his students, the philosopher and rhetorician Michael Psellos (1018-1078) wrote that
[t]he philosopher must be a man of all sorts (παντοδαπὸν) and strive not only to know sciences and arts whose natural product is wisdom and understanding, but also to study history, to be keen on geography, and to have some expertise in the rest of ‘music’, by which I mean not just music making with physical instrument but all word-based history and culture and, in a word, the whole complex of deep and broad learning (καὶ τὴν ἄλλην ἁπλῶς εὐμάθειάν τε καὶ πολυμάθειαν).1
