Individuals and Concepts at the Origins of Leibniz’s Project -- A World of Individuals: Particularist Ontology -- A World of Concepts: Combinatorial Science and the Individual -- Abstraction and Predication: At the Boundary of Concepts and Things -- Origo Rerum ex Formis -- “Mira res, aliud esse subjectum quam formas seu attributa” -- Modes and Requisites: The Genesis of Finite Things -- …