 He was first to see that Aquinas had a response and development of thought rather than a single, coherently emerged and organic whole.According to Battista Mondin, Grabmann interprets Aquinas' metaphysics as an advanced version of Aristotle's based on the notion of common being ("ens commune") and his rational theology as employing an original concept of being to describe the Divine attributes based on the notion of subsistent being itself ("esse ipsum subsistens).Grabmann was foundational in fostering the variety of contemporary interpretations of both scholasticism and Aquinas.