 Most medieval philosophers are not as extreme as the Nominales. Of course, there are those parts that are required to keep the whole intact, but there are also those parts that can be lost without compromising the integrity of the whole. If we were to cut off Socrates’ head, he would perish. But if we amputate Socrates’ right hand, it seems that Socrates would not cease to exist. He would merely lack a hand. The parts required to keep a whole intact are called “principal”. Ones that could be lost without compromising the integrity of the whole were called “secondary” parts (Anonymmous Introductiones maiores Montane 71va-72rb; Albertus Magnus Commentarii in De div. tract. 2, ch. 5 (Loe ed., 33–4); Buridan Summulae de Dialectica 6.4.4). Examples of principal parts would be the foundation of the house, the heart of a cat, and the brain of Socrates. Examples of secondary parts are a brick in the house, a strand of hair belonging to the cat, and a fingernail of Socrates.