Referentie: Aristoteles, The works of Aristotle, Volume II, Translated into English under the editorship of W.D. Ross, Oxford: Clarendon Press, 1930, 12 vols. (digitale kopie via Internet Archive)
Plaatskenmerk: https://archive.org/stream/workstranslatedi02arisuoft#page/n19/mode/2up (geraadpleegd op 05.12.2013)
Extract: "The most pertinent question with which to begin will be this: In what sense is it asserted that all things are one ? For 'is' is used in many senses. Do they mean that all things 'are' substance or quantities or qualities ? And, further, are all things one substance - one man, one horse, or one soul - or quality and that one and the same - white or hot or something of the kind ? These are all very different doctrines and all impossible to maintain. For if both substance and quantity and quality are, then, whether these exist independantly of each other or not, Being will be many."
Soort bron: een ingescand filosofisch boek (in html-formaat) dat men via een internetpagina gratis kan downloaden