According to available historical documents , he is the first philosopher known to have written down his studies , Themistius , PERSON@1 NUMBER@1 , § NUMBER@2 although only one fragment of his work remains .

According to available historical documents , he is the first philosopher known to have written down his studiesThemistius , PERSON@1 NUMBER@1 , § NUMBER@2 , although only one fragment of his work remains .
