  “[T]he spherical body does not touch the flat body primarily with a part that is such that each of its parts touches the flat body. Therefore, it does not touch it primarily with some part that is prior to all the other touching parts. Rather, any given touching part is still such that a half of it does not touch immediately, and a half of that half does not touch immediately, and so on ad infinitum.” [William of Ockham, Quodlibetal Questions, I, q. 9, ad 2 (1991: 53)]