Cognitive Science, Volume 46, Issue 9, September 2022.

Two fundamentally different conceptions of unity can be found in the philosophical tradition. My thesis is that both of them go back to one text, Plato's Parmenides. Plato argues that if the One is posed as unity (the first hypothesis), the One is unthinkable and unnamable. If the One is posed as being (the second hypothesis), we think a plurality. Plotinus explicitly relates his conception of unity to the Parmenides. The One is the origin of the second hypostasis that is (...) marked by the connection of unity and plurality. The One itself is Apollo, a name that is explained as a polla, that is, the ‘not-many’, is indistinct and beyond being. Characteristic of Neoplatonic thought, for which the term ‘henology’ has been introduced, is the absolute transcendence of the One. According to E. Gilson (Being and Some Philosophers) Neoplatonism is incompatible with ‘the mental universe of Christian thinkers’ on account of its thesis that the One transcends being. Yet two henological moments strongly influenced Christian tradition. The first is the idea of ‘negative theology’. It is perceptible in Nicolaus of Cues, who considers ‘Unity’ the most appropriate name for God. The second moment is the spiritual, mystical idea of ‘the union with the One’ (cf. Master Eckhart). More substantial than Gilson's criticism is the position of Levinas who reproaches classical philosophy with the elimination of plurality. The question is whether unity can be conceived in such a way that the plurality of things is saved. The second conception of unity was developed by Aristotle in his Metaphysics (IV, 2). In a critical reaction to the second hypothesis of the Parmenides he argues that ‘being’ and ‘one’ are identical in reality, but differ conceptually. ‘One’ expresses the undividedness (indivisio) of that which is. What deserves attention is that unity does not deny plurality, but division. Aristotle's exposition became the startingpoint of the 13th century doctrine of the transcendentia. Characteristic of this conception of the one is the transcendentality : the one is a property belonging to every being. The importance of this view is twofold. First, the metaphysical one is clearly distinguished from the mathematical one, that belongs to the category of quantity. Second, from the transcendentality follows that ‘one’ has an analogous character. There is no uniformity in unity. The transcendental one determines being in itself. Is not another type of unity required, that is relational in nature ? Some Dutch philosophers have recently developed a new conception of unity, namely, ‘unity as intersubjectivity’. This conception has a theological root : Thomas Aquinas' interpretation of the doctrine of the Trinity. The modern view of unity as an intersubjective unity of a plurality can be understood as a completion of the transcendental conception of the one. The transcendent conception of the One and the transcendental conception have common traits. Thinking of the one is always a transcending movement. Moreover, it implies the task of a union, for it deals with a unity that is not yet, but must be. (shrink)

Already in the Middle Ages the honorary title Doctor communis was conferred on Aquinas, but in fact he was never "the common teacher". About twenty-five years after his death (1274), the Franciscan theologian John Duns Scotus voiced an uncommonly severe criticism: he cannot imagine a theologian and a philosopher maintaining that which Aquinas teaches. The conflict between these thinkers of stature is the subject of this essay. (1) We first describe the epistemological problem, that of the "adequate object of the (...) intellect", from which Scotus develops his criticism, and than analyze (2) his theological and (3) philosophical objections to Aquinas's position. But something is to be said against the analysis of the Doctor subtilis: (4) his criticism proves to be onesided and departs from suppositions, not shared by his opponent. (shrink)

Aquinas presents his most complete exposition of the transcendentals inDe veritate 1, 1, that deals with the question What is truth?. The thesis of this paper is that the question of truth is essential for the understanding of his doctrine of the transcendentals.The first part of the paper (sections 1–4) analyzes Thomas''s conception of truth. Two approaches to truth can be found in his work. The first approach, based on Aristotle''s claim that truth is not in things but in the (...) mind, leads to the idea that the proper place of truth is in the intellect. The second approach is ontological: Thomas also acknowledges that there is truth in every being. The famous definition of truth as adequation of thing and intellect enables him to integrate the two approaches. Truth is a relation between two terms, both of which can be called true because both are essential for the conformity between thing and intellect. (shrink)

This is a critical reflection on the opposition between the "Christian" primacy of being and the Neoplatonic-Dionysian primacy of the good that was introduced by Etienne Gilson. This opposition is considered from two different but interrelated angles, a more historical one and a more systematic one. In the first part, the author sees whether it is correct to say that medieval authors upheld the Christian primacy of being against Dionysius. In the second part, he inquires into the philosophical reasons for (...) the primacy of the Good, which are adduced in medieval texts. (shrink)

This essay examines Aquinas’s analysis of the human desire to know, which plays a central role in his thought. (I.) This analysis confronts him with the Aristotelian tradition: thus, the desire for knowledge is a “natural” desire. (II.) It also confronts him with the Augustinian tradition, which deplores a non-virtuous desire in human beings that is called “curiosity.” (III.) Aquinas connects the natural desire with the Neoplatonic circle motif: principle and end are identical. The final end of the desire to (...) know is the knowledge of God. (IV.) Aquinas also connects the end of the natural desire to know with Christian eschatology, teaching that man’s ultimate end is the visio Dei. This end, however, is “supernatural.” (V.) Duns Scotus severely criticizes central aspects of Aquinas’s account. (VI.) As a rejoinder to Scotus’s objections, we finally consider Aquinas’s view on the proper object of the human intellect. (shrink)

The paper presents the sources and the development of the medieval doctrine of transcendentals. In Aertsen's opinion transcendental philosophy of the Middle Ages differs considerably from the ontological doctrine of the Ancients as well as from the modern theory referring to the sphere of cognition. The beginnings of the medieval doctrine of the transcendentals were inspired mostly by considerations concerning primary conceptions of human mind included in Avicenna's "Metaphysica". Furthermore, they were connected with the Aristotelian idea of science, the Boethian (...) axiomatic method of "common conceptions of the soul", and theologians' interest in the horizon of human intellectual knowledge. Beside the Aristotelian-Avicennian reduction to the most universal predicate Albert the Great acknowledge another reduction (originating from the Christian-Neoplatonic tradition): reduction to the first cause. In his opinion, these two resolutions are complementary to each other. In the philosophy of Thomas Aquinas, transcendentals are most fundamental insofar as they are the foundations of theoretical and practical science. The principle of contradiction – considered as the beginning of theoretical science – rests on the understanding of "being", and the first precept of natural law is founded on "the good". The development of the doctrine of the transcendentals in 13th century aloows to call the period "the second beginning of metaphysics" – since it changes the understanding of the proper subject of First Philosophy. In Albert the Great, for example, matephysics ceases to be the science of the divine, and becomes the science concerning what is first and the most fundamental – "being-as-being". In St. Bonaventure's philosophy, the doctrine of the transcendentals undergoes a theologizing transformation: that, which is first in the cognitive order is, at the same time, first ontologically. For Bonaventure, the latter "first" is God. (shrink)

In the Middle Ages more than in other periods, eschatology informed the way people understood humankind and the world. The papers in the present volume are devoted to the complexity and interconnectivty of the eschatological orientation of the Middle Ages. Central topics are questions of the influence and formation of eschatological themes in philosophy and the significance of ideas of the final end in medieval political thought. In addition, there is a consideration of further themes from history, theology, art and (...) literature. The 29th volume of the Miscellanea Mediaevalia contains the papers delivered to the 32nd Cologne Medieval Studies Conference plus additional contributions. The volume includes five papers on the 50-year history of the Thomas Institute, which has been organising the Cologne Medieval Studies Conference for the last half century. (shrink)

The focus of this article is on an ambivalent conception in medieval thought, namely the term ‘transcendens’, which on the one hand signifies a reality beyond created beings, i.e. God, and on the other hand signifies something common to all beings. Armandus de Bellovisu, in his Declaratio difficilium terminorum, has thematized exactly this difference between transcendence that follows from ‘nobility of being’ and that which follows from ‘commonness of predication’ . The medieval term ‘transcendens’, because of its ambiguity, thus includes (...) two fundamental concepts, which represent divergent philosophical tendencies concerning the specification of First Philosophy: the one understands it as «Philosophy of Transcendence», the other as «Transcendental Philosophy». The history of metaphysics is characterized by the tension between these two tendencies, but as we shall see, it also shows that they are intimately connected. (shrink)