Leibniz on the Grounds of the Principle of Sufficient Reason

I examine several alleged grounds of the principle of sufficient reason in Leibniz’s philosophy. These include the nature of a requisite and a sufficient condition, the nature of truth, and the nature of harmony. I argue that Leibniz does not ground the PSR in any of these ways. Instead, he is committed to a value-based grounds of the PSR: God creates the best possible world, and the fact that the PSR obtains in this world contributes to it being the best. I conclude by considering some objections to this way of grounding the PSR.

Theism, Possible Worlds, and the Multiverse

God is traditionally taken to be a perfect being, and the creator and sustainer of all that is. So, if theism is true, what sort of world should we expect? To answer this question, we need an account of the array of possible worlds from which God is said to choose. It seems that either there is (a) exactly one best possible world; or (b) more than one unsurpassable world; or (c) an infinite hierarchy of increasingly better worlds. Influential arguments for atheism have been advanced on each hierarchy, and these jointly comprise a daunting trilemma for theism. In this paper, I argue that if theism is true, we should expect the actual world to be a multiverse comprised of all and only those universes which are worthy of creation and sustenance. I further argue that this multiverse is the unique best of all possible worlds. Finally, I explain how his unconventional view bears on the trilemma for theism.

Theism, Possible Worlds, and the Multiverse

God is traditionally taken to be a perfect being, and the creator and sustainer of all that is. So, if theism is true, what sort of world should we expect? To answer this question, we need an account of the array of possible worlds from which God is said to choose. It seems that either there is (a) exactly one best possible world; or (b) more than one unsurpassable world; or (c) an infinite hierarchy of increasingly better worlds. Influential arguments for atheism have been advanced on each hierarchy, and these jointly comprise a daunting trilemma for theism. In this paper, I argue that if theism is true, we should expect the actual world to be a multiverse comprised of all and only those universes which are worthy of creation and sustenance. I further argue that this multiverse is the unique best of all possible worlds. Finally, I explain how his unconventional view bears on the trilemma for theism.

Introduction

As the United States emerged triumphant from the Cold War and became the world’s sole superpower, the 1990s underground punk renaissance challenged the narrative that democratic capitalism was the best possible world. It did so by transforming punk musical style, politics, and culture to speak to new conditions and revolutionize the punk scene from the inside out. An outline of punk’s history and musical development, as well as an exposition of original methods of musical analysis for punk rhythms, riffs, timbres, and vocals, provide the necessary background for understanding 1990s punk.

“Confessio philosophi”

The “Confessio philosophi” is an early dialogue in which Leibniz engages with what he takes to be the central task of theodicy: to uphold the justice of God. It evinces his commitment to the claim that ours is the best possible world, and offers an account of how such a world could include damnation. Various answers to the question why God is justified in permitting sin are suggested in the dialogue. These are addressed in this chapter, which also highlights a threat to God’s justice raised by the doctrine of eternal damnation which is given surprisingly little attention. The chapter concludes with a discussion of the place of the “Confessio philosophi” in Leibniz’s lifelong theodicy project.

Kant’s Critical Theory of the Best Possible World

In this article I argue that the Critical Kant endorses the claim that God creates the best possible world, and that this claim is best understood as committing him to the view that God creates an infinitely valuable world. Kant’s understudied Critical theory of the best possible world differs significantly from his better-known quasi-Leibnizian pre-Critical account insofar as it uses an axiological rather than ontological metric for the goodness of worlds. The axiological metric introduces unique challenges for a Kantian account of the best possible world. These challenges are in turn resolved via an infinite value interpretation.

Kant on the Existence and Uniqueness of the Best Possible World

In the 1750s Optimism, the Leibnizian doctrine that the actual world is the best possible world, popularized by Pope in 1733 in his Essay on Man, was a hot topic. In 1759 Kant wrote and published a brief essay defending Optimism, Attempt at some Reflections on Optimism. Kant’s aim in this essay is to establish that there is one and only one best possible world. In particular, he argues against the claim that, for every possible world, there is a possible world better than it and against the claim that there are two or more equally good possible worlds that are better than all the rest. Although it is not clear why, Kant was later dissatisfied with his essay. In this article I shall reconstruct, discuss, and evaluate Kant’s arguments. My evaluation will be negative, and so I think Kant had reasons to be dissatisfied with his essay.