Hereafter, when they come to model Heav'n And calculate the Stars, how they will wield The mightier frame, how build, unbind, contrive To save appearances, how gird the Shear With Centric and Eccentric scribbled ore, Cycle and Epicycle, Orb in Orb.
In: Great Books of the Western World (Volume 32), Paradise Lost, Book VIII, l. 79-84