Outward Signs: The Powerlessness of External Things in Augustine's ThoughtThis book is, along with Inner Grace (OUP 2008), a sequel to Phillip Cary's Augustine and the Invention of the Inner Self (OUP 2000). In this work, Cary argues that Augustine invented the expressionist type of semiotics widely taken for granted in modernity, where words are outward signs giving inadequate expression to what lies within the soul. Augustine uses this new semiotics to explain why the authority of external teaching, including Biblical