In this article, I develop a higher-order interpretation of Leibniz's theory of consciousness according to which memory is constitutive of consciousness. I offer an account of Leibniz's theory of memory on which his theory of consciousness may be based, and I then show that Leibniz could have developed a coherent higher-order account. However, it is not clear whether Leibniz held (or should have held) such an account of consciousness; I sketch an alternative that has at least as many advantages as (...) the higher-order theory. This analysis provides an important antecedent to the contemporary discussions of higher-order theories of consciousness. (shrink)

My aim in this chapter is to survey some of the most important developments in thinking about essence in the early modern period, highlighting ways in which thinkers in the period gradually depart from the medieval Aristotelian tradition. In this tradition, essence is thought of as selective, explanatory, and kind-determining. Whereas in the beginning of the early modern period some figures (such as René Descartes, Thomas Hobbes, Margaret Cavendish, and Anne Conway) still adhere to this traditional view, later figures (including (...) Benedict de Spinoza, G.W. Leibniz, and John Locke) reject it. (shrink)

Leibniz’s claim that it is possible for us to gain metaphysical knowledge through reflection on the self has intrigued many commentators, but it has also often been criticized as flawed or unintelligible. A similar fate has beset Leibniz’s arguments against materialism. In this paper, I explore one of Leibniz’s lesser-known arguments against materialism from his reply to Bayle’s new note L, and argue that it provides us with an instance of a Leibnizian “argument from reflection”. This argument, I further show, (...) does not constitute a flawed appeal to mere introspection, but is in fact securely grounded in an important corollary of the Principle of Sufficient Reason: Leibniz’s Principle of Intelligibility. (shrink)

This anthology is about the signal change in Leibniz’s metaphysics with his explicit adoption of substantial forms in 1678-79. This change can either be seen as a moment of discontinuity with his metaphysics of maturity or as a moment of continuity, such as a passage to the metaphysics from his last years. Between the end of his sejour at Paris and the first part of the Hanover period, Leibniz reformed his dynamics and began to use the theory of corporeal substance. (...) This book explores a very important part of the philosophical work of the young Leibniz. Expertise from around the globe is collated here, including Daniel Garber’s work based on the recent publication of Leibniz's correspondence from the late 1690s, examining how the theory of monads developed during these crucial years. Richard Arthur argues that the introduction of substantial forms, reinterpreted as enduring primitive forces of action in each corporeal substance, allows Leibniz to found the reality of the phenomena of motion in force and thus avoid reducing motion to a mere appearance. Amongst other themes covered in this book, Pauline Phemister’s paper investigates Leibniz’s views on animals and plants, highlighting changes, modifications and elaborations over time of Leibniz’s views and supporting arguments and paying particular attention to his claim that the future is already contained in the seeds of living things. The editor, Adrian Nita, contributes a paper on the continuity or discontinuity of Leibniz’s work on the question of the unity and identity of substance from the perspective of the relation with soul and mind. (shrink)

Leibniz frequently argued that reasons are to be weighed against each other as in a pair of scales, as Professor Marcelo Dascal has shown in his article "The Balance of Reason." In this kind of weighing it is not necessary to reach demonstrative certainty – one need only judge whether the reasons weigh more on behalf of one or the other option However, a different kind of account about rational decision-making can be found in some of Leibniz's writings. In his (...) article "Was Leibniz's Deity an Akrates?" Professor Jaakko Hintikka has argued that Leibniz developed a new vectorial model for rational decisions which is better suited to complicated decisions, where values are complementary to each other. This model, related closely to his work in metaphysics and the philosophy of mind, is a heuristic device which helps in finding rational combinations - and in an ideal case an optimum - between plural inclinations to the good. I shall argue that Leibniz applies more or less implicitly both of these models in his practical rationality. In simple situations he applied the pair of scales model and in more complicated situations he applied the vectorial model. (shrink)

In this paper I will discuss the doctrine of substance which emerges from Leibniz’s unpublished early memoir De affectibus of 1679. The memoir marks a new stage in Leibniz’s views of the mind. The motivation for this change can be found in Leibniz’s rejection of the Cartesian theory of passion and action in the 1670s. His early Aristotelianism and some features of Cartesianism persisted to which Leibniz added influences from Hobbes and Spinoza. His nascent dynamical concept of substance is seemingly (...) a combination of old and fresh influences, representing a characteristically eclectic approach, but I will argue that the influence of Hobbes is especially important in the memoir. To do that, I will examine Leibniz’s development in the 1670s up to the De affectibus and consider the nature of affects in the memoir, especially the first affect which starts the thought sequence. This first affect of pleasure or pain is the key to Leibniz’s theory of active substances and in this way to the whole of Leibniz’s moral psychology and ethical metaphysics. (shrink)

The aim of this paper is twofold. First, I would like to bring into the light the almost unexplored Sellars’s theory of particulars. Second, I would like to show its surprising degree of compatibility with the thesis supported by some contemporary tropists, Tropes, Universals and the Philosophy of Mind, Ontos Verlag, 2008; Moltmann, Mind 113:1–41, 2004 and Moltmann, Noûs 47:346–370, 2013). It is difficult to establish whether Sellars possessed an own theory of tropes, developed independently by the classical form it (...) took in Williams 1953, but as a matter of fact the peculiar features of his “complex particulars” model it is very much like Williams’s theory. So much so that to all intents and purposes it represents a tropes variation. One of its strengths is that it is not part of a constituent ontology, since it is essentially developed from a linguistic and phenomenological point of view. It is for these reasons that this theory manages to avoid some of the classic objections to tropes and it shows to be compatible with the argument of Jonathan Lowe’s “proper visibility” as well as with Friederike Moltmann’s exquisitely linguistic interpretation of tropes. (shrink)

This article has two objectives. In the first part, I present a critical overview of the extensive anthropological literature that may be deemed “phenomenological.” Following this critique, which is built up around a classification into four different varieties of phenomenological anthropology, I discuss the relationship between phenomenological anthropology and the ontological turn (OT). Contrary to received wisdom within the anthropological discipline, I suggest that OT has several things in common with the phenomenological project. For the same reason, I argue, it (...) is not accurate to posit OT and phenomenology as opposing or antagonistic projects, as they are often depicted among critics and advocates of OT alike. On the contrary, I go as far as suggesting, OT may be understood as one of the most concerted attempts anthropology has produced to realize a distinctly anthropological version of Husserl’s method of phenomenological bracketing, namely what could be called the ontological epoché. (shrink)

Despite his commitment to freedom, Leibniz’ philosophy is also founded on pre-established harmony. Understanding the life of the individual as a spiritual automaton led Leibniz to refer to the puzzle of the way out of determinism as the Labyrinth of Freedom. Leibniz claimed that infinite complexity is the reason why it is impossible to prove a contingent truth. But by means of Leibniz’ calculus, it actually can be shown in a finite number of steps how to calculate a summation of (...) infinite parts. It appears that the analogy Leibniz drew between the mathematics of infinite series and the logic of contingent truths did more harm than good. A solution consistent with Leibniz’ perception of infinity is proposed. Alongside the existence of the aforementioned analogy, it is based on a disanalogy between the mathematics of infinite series and the logic of infinitely complex truths. This is a disanalogy that Leibniz had already used to solve the Labyrinth of Continuum which he declared more than once could, like the Labyrinth of Freedom, be solved by means of the nature of infinity. The solution of both labyrinths is based on the fictitiousness of the infinitesimal. (shrink)

Leibniz's well-known thesis that the actual world is just one among many possible worlds relies on the claim that some possibles are incompossible , meaning that they cannot belong to the same world. Notwithstanding its central role in Leibniz's philosophy, commentators have disagreed about how to understand the compossibility relation. We examine several influential interpretations and demonstrate their shortcomings. We then sketch a new reading, the cosmological interpretation, and argue that it accommodates two key conditions that any successful interpretation must (...) satisfy. (shrink)

In this article, I first reconsider the personal links between Comenius and Leibniz, searching for how Comenian texts and ideas may have reached Leibniz. For that reason, I outline a constellation of thinkers within Central European Protestantism, since a vast majority of the important intellectuals with some noteworthy link both to Comenius and Leibniz were based there. Second, I investigate more closely one particular intellectual link between Comenius and Leibniz, namely their common combinatorial standpoint, because the striking parallels, connections and (...) similarities between Comenius’s and Leibniz’s ideas on combinatorics, universal language and relational metaphysics have been largely overlooked thus far. (shrink)

How many formulations of Principle of Sufficient Reason can one find in Leibniz's works? This paper suggests that there are at least two different formulations, which start from different basic concepts, trying to sketch the relations between them and the evolution from the more ancient formulation to the mature one.