For things in our perceptible world are one in virtue of soul, or of a part of soul, or of something else that is reasonable enough; when these are not present, the thing is a plurality, and splits up into parts. But in the case of the subjects of mathematics, which are divisible and are quantities, what is the cause of their being one and holding together?
Mundu honetako gauzak, hain zuzen ere, arima edo arimaren zati batengatik edo beste gauza egokiren batengatik dira batasun bat (bestela, aniztasun bat lirateke eta barreiatu egingo lirateke); baina errealitate haietarako, haiek zatigarriak eta kantitatedunak izanik, zein da batasun bat osatzearen eta elkarturik jarraitzearen kausa?