  Marinus notes that Proclus was an extremely industrious writer, having an “unbounded love of work” (Life of Proclus § 22). Apart from an impressive teaching-load and several other commitments, Proclus wrote every day about 700 lines (about 20–25 pages). It is unlikely that Proclus published all of them. However that may be, from Proclus’ extant works and the information about his lost works it emerges that he was a productive writer indeed. Roughly two thirds of Proclus’ output is now lost and several works, especially his commentaries on Plato, have been transmitted in a mutilated form.