Florian Marion

In this paper, I shall argue for Moral Cannibalism, namely the view that cannibalism is morally mandatory, at least for some meat-eaters animals, given some acceptable assumptions about justice and moral duty. Such an incredible claim will be preceded by a short exposition of the rationale for Moral Vegetarianism and for its adversary position Moral Omnivorism (§1), then I will briefly present Moral Cannibalism (§2), and finally I will discuss two arguments for it, a positive one (§3) and a negative one (§4): on the one hand, justice between animal species might imply that it is morally better for some carnivorous species to eat the members of their own species rather than members of other species; on the other hand, the moral wrongness of cannibalism lacks a satisfactory ground.

The Parmenides is the locus of Plato’s theoria motus abstracti (that is, abstract kinematics) for it is here that Plato gives a mereological and locational analysis of motion (First Deduction: 138b7-139b3) and discusses the famous puzzle of the instant of change (Second Deduction: 156c1-157b5). But there is another scholarly very neglected text from this dialogue that provides us with great insights about Plato’s theory of change: the Fifth Deduction (160b3-163b6) and its answer to the Eleatic argument against coming-to-be. I shall devote my paper to Plato’s discussion of the coming-to-be (γένεσις) of beings from what is not; first, by expounding what Plato says in the Fifth Deduction, second, by putting his theory in a bigger philosophical ecosystem (the quarrel between Eleaticism and Creationism). Then, I shall argue for two points: first, coming-to-be as described in the Fifth Deduction is, at first sight, incompatible with Plato’s account of motion given in the First Deduction; second, the logic behind the Fifth Deduction - if consistent - must be a non-classical temporal logic that restricts Leibniz’s laws of identity to some but not all properties.

In this paper, I shall discuss the question whether a concrete object can be multi-located while it is moving or not. I shall say nothing on the vexed issue of multi-location in and for itself. Instead, my discussion will support a ‘might’-conditional claim: ‘if multi-location were possible, then change might imply multi-location’. To do this, after a very short clarification of the various meanings of ‘to be located’, I will first present and discuss Diodorus’ arguments against the reality of motion, since they focus on the question of what the location of the moving item is, and then scrutinize Hegel’s reply to Diodorus Cronus’ reasonings, insofar as his answer consists in claiming that an object in motion is in many locations at once. Although many philosophers of the past are referred to, this paper does not aim to be a piece of scholarship, but to explore the various metaphysical possibilities concerning the logic of location underlying change.

The focus on this contribution is on the ‘late-learners’ digression. In Sph. 251a8-c6, the Eleatic Stranger briefly discusses the view of some ‘young and old late-learners’ who hold that, from a logico-metaphysical point of view, unlike ‘a man is a man’ or ‘a good is good’, the statement ‘a man is good’ is neither a well-formed nor a grammatical sentence. Usually, modern commentators devote little energy to interpreting this passage since they are content to note that it suffices to discriminate identity and predication to avoid the sophism. The aim of this paper is to show that the position of the ‘late-learners’ is in fact more subtle than it seems, since it is widely open to many readings, and that the chosen reading of the digression has a direct impact on the general interpretation of the rest of the dialogue (communication of kinds, semantic distinction between names and verbs, etc.). To this end, the view of the ‘late-learners’ will be compared with a similar position discussed in a quite different philosophical ecosystem: the White-Horse Paradox forged by Gōngsūn Lóng, a dialectician of the ‘School of Names’. This paradox states that the sentence ‘a white horse is not a horse’ is true. Many readings of the White-Horse Paradox have been offered: some of these readings are the same as those suggested for the ‘late-learners’ view, but others are absent from the scholarly literature, although they provide interesting insights into the interpretation of Sph. 251a8-c6.

Metaphysicians who are aware of modern physics usually follow Putnam (1967) in arguing that Special Theory of Relativity is incompatible with the view that what exists is only what exists now or presently. Partisans of presentism (the motto ‘only present things exist’) had very difficult times since, and no presentist theory of time seems to have been able to satisfactorily counter the objection raised from Special Relativity. One of the strategies offered to the presentist consists in relativizing existence to inertial frames. This unfashionable strategy has been accused of counterfeiting, since the meaning of the concept of existence would be incompatible with its relativization. Therefore, existence could only be relativistically invariant. In this paper, I shall examine whether such an accusation hits its target, and I will do this by examining whether the different criteria of existence that have been suggested by the Philosophical Tradition from Plato onwards imply that existence cannot be relativized.

The present PhD dissertation aims to examine the relation between modality and change in Aristotle’s metaphysics. On the one hand, Aristotle supports his modal realism (i.e., worldly objects have modal properties - potentialities and essences - that ground the ascriptions of possibility and necessity) by arguing that the rejection of modal realism makes change inexplicable, or, worse, banishes it from the realm of reality. On the other hand, the Stagirite analyses processes by means of modal notions (‘change is the actuality of what is virtual insofar as it is virtual’). In other words: to grasp what change is, one has to resort to the modal idiom of potentialities, while the fact that there is change is indicative of the fact that nature is full of modal properties. Aristotle’s modal and kinetic realism finds a negative in the figure of the Megaric Diodorus Kronus. The polemical situation of Greek philosophy has indeed the dialectical advantage of not opposing the Aristotelian position to a sui generis straw man. Both in its reduction of modal judgements to temporal quantifications and in its dissolution of the reality of the state-of-being-in-motion in favour of a cinematographic view of processes, the philosophical figure of reductionist antirealism embodied by Diodorus constitutes an alternative that takes the opposite view of Aristotle’s realism. The present study is structured as a discussion between these two positions. In the face of Diodorus’ antirealist challenges, Aristotle articulates modal and kinetic considerations: the answers he gives to Diodorus’ puzzles thus provide valuable insight into his metaphysics. Moreover, the examination of Aristotle’s and Diodorus’ metaphysics, because of their insight and originality, will not fail to interest the philosopher concerned with the metaphysical foundations of modern physics, insofar as the entanglement between modalities and processes is nowadays at the core of mechanics (phase spaces, path integrals, etc.).

The question of ontological foundation has undergone a noteworthy revival in recent years: metaphysicians today quarrel about how exactly to understand the asymmetrical and hyperintensional relationship of grounding. One of the reasons for this revival is that the old quantificationalist meta-ontology inherited from Quine has been effectively criticised by leading philosophers favourable to a meta-ontology, the aim of which is to come to know “which facts/items ground (constitute the base of) which other facts/items”, thus to examine the relation of ontological dependence between beings (e.g. chemical properties depend on physical properties, the economic situation on the behaviour of individuals etc.), i.e. to explore the hierarchical structure of reality. I shall not discuss here the relationship of grounding in itself, but make some historical-formal remarks on the properties of the ultimate ontological foundational item itself and its aporetic nature. To do so I explore various more or less exotic philosophical ecosystems in the following order: Heidegger (Seyn), Plato (ἕν), Wáng Bi (道, dào). On the way I shall propose a new interpretation both of certain hypotheses in the Parmenides and of the nature of the opposition between Wáng Bì and Guō Xiàng in regard to the logical grammar of the expression “nothing (無, wú)”.

The aim of this paper is to provide some acquaintance with the exegetical history of ἐξαίφνης inside the Platonic Tradition, from Plato to Marsilio Ficino, by way of Middle Platonism and Greek Neoplatonism. (Since this is only a draft, several modifications should be made later, notably in order to improve the English.) Some part has been presented in Los Angeles: “Damascius’ Theodicy: Psychic Input of Disorder and Evil into the World”, 16th Annual ISNS (International Society for Neoplatonic Studies) Conference, Loyola Marymount University, 14th June 2018