He turned then to Alfred North Whitehead and his notion of prehension or perspective. A universe of orders composed of orders composing other orders, of perspectives, is an inexhaustible universe without totality. Everything is limited, including every limit, an inexhaustible play of limit and unlimit. In 2002 he came to believe that such a sense of inexhaustibility required a very different style of writing, more literary and oblique, and found this in post-Heideggerian writings, especially Michel Foucault, Jacques Derrida, Emmanuel Levinas, and Deleuze and Guattari. "The Ring of Representation" was written in sonorous and voiced verbs—ringing, sounding—avoiding all forms of the verb "to be" so as to question the question of Being. An ongoing theme throughout his work was that of an infinite ethics, infinite in each decision and inclusive of all things. This led him to Levinas's notions of "betrayal" and "generosity", two notions that would deeply influence his writing. Betraying contains a double meaning, violation and revelation. He linked it with Anaximander's notion of injustice in all things, later defining it as the nonidentity of every identity with itself, a systematic and pervasive sense of how nature and reason exceed themselves, with evolution a foremost example of the first, art and literature of the second. This was followed by seven volumes on gifts and generosity, undercutting the sense of possessing and having that color traditional views of knowledge, truth, and being. Then followed explorations of images in philosophy and art, understanding the world as images, a different way of thinking of perspectives. Images proliferate from other images, revealing and betraying them. This double movement of betraying led to books on enchantment and disenchantment, on asking and telling, to a novel, returning to an infinite and inclusive ethics through animals and other things. These all express a sense of unceasing questioning, and questioning that questioning, that he suggests is profoundly ethical: ethical fullness. Sturla Sighvatsson  Sturla Sighvatsson (1199 – 21 August 1238) was an Icelandic chieftain or "goði" of the Sturlungar family clan who played an active role in the armed conflicts in Iceland during the Age of the Sturlungs (Icelandic: "Sturlungaöld"). Sturla was the son of Sighvatur Sturluson, brother of saga-writer Snorri Sturluson and lived on a farmstead in Sauðafell.