Leibniz's Predicate-in-Notion Principle and Some of its Alleged Consequences - A 1949 paper by C.D. Broad. Explores this principle which the author educes from Leibniz's writings. Leibniz and Epistemological Diversity - Essay by Marcelo Dascal, discussing the achievement of knowledge as a collective/cooperative enterprise. Leibniz's Moral Philosophy - An introduction to "Goodness" and "Justice" from Leibniz point of view. Leibniz and Russia - Essay about Leibniz, his love to Russia and his correspondence with Peter the Great. Leibniz, Not Locke, Inspired the Declaration of Independence - Polarizing article about the Declaration of Independence. Leibniz on the Problem of Evil - An entry by Michael J. Murray, from the Stanford Encyclopedia of Philosophy. Leibniz's Philosophy of Mind - An entry from the Stanford Encyclopedia of Philosophy. By Mark Kulstad and Laurence Carlin. Leibniz's Metaphysics: Its Origins and Development - Philip Beeley reviews this book by Christia Mercer. From Notre Dame Philosophical Reviews. Gottfried Wilhelm Leibniz: Metaphysics - Summary of Leibniz's main ideas, including "The Idea of Truth" or "Problems of Freedom, Sin and Evil". From the Internet Encyclopedia of Philosophy.