Critical Rationalism in the Test Tube? Lecture given at the ’’International Summer School on the Philosophy of Chemistry and Biochemistry‘‘, Bradford & Ilkley Community College, 11. – 14. July 1994.

Popper's critical rationalism is widely accepted under scientists and philosophers of science as a proper method for the reconstruction of scientific theories. On occasion of the application of the Popperian ideas for the reconstruction of chemistry by Akeroyd the flaws of the critical rationalist approach are criticised and a methodical alternative is proposed, involving the operational definition of scientific terms. This revised version was published online in July 2006 with corrections to the Cover Date.     

A NINETEENTH-CENTURY IRASian: SARAH ALDEN BRADFORD RIPLEY

Abstract. Almost entirely self-educated, Sarah Alden Bradford Ripley (1793–1867) combined wide-ranging personal studies with the daily responsibilities of a New England minister's wife, mother, and teacher in her husband's boarding school. As she struggled to reconcile the conventional Unitarian Christian beliefs of her time with her own life experience and with the discoveries of advancing science, her childhood faith gave way to skepticism. Gradually she was able to integrate her understanding of nature, science, philosophy, and religion into a mature faith. She would have welcomed the companionship and support of IRAS if it had existed in her day.     

From the clarity of ideas to the validity of judgments: Kant's farewell to epistemic perfectionism

Against the standard interpretation of Kant's ‘Copernican revolution’ as the prioritization of epistemology over ontology, I argue in this paper that his critique of traditional metaphysics must be seen as a farewell to the perfectionism on which early modern rationalist ontology and epistemology are built. However, Kant does not simply replace ‘perfection’ with another fundamental concept of normativity. More radically, Kant realizes that it is not simply ideas but only the relation of ideas that can be subject to norms, and thus he shifts the focus from the reality of ideas to the validity of judgments. Section 1 of this paper clarifies the pre-Kantian role of the concept of perfection and examines Kant's critical response to that concept. Section 2 identifies Kant's point of departure from the Cartesian ‘way of ideas.’ Section 3 explains the key problem of his novel account of epistemic normativity. I conclude that Kant's anti-perfectionism must be seen as the driving force behind his ‘Copernican revolution’ in order to fully appreciate his mature account of epistemic normativity.     

Leibniz's Twofold Gap Between Moral Knowledge and Motivation

Moral rationalists and sentimentalists traditionally disagree on at least two counts, namely regarding the source of moral knowledge or moral judgements and regarding the source of moral motivation. I will argue that even though Leibniz's moral epistemology is very much in line with that of mainstream moral rationalists, his account of moral motivation is better characterized as sentimentalist. Just like Hume, Leibniz denies that there is a necessary connection between knowing that something is right and the motivation to act accordingly. Instead, he believes that certain affections are necessary for moral motivation. On my interpretation, then, Leibniz is an externalist about judgements and motivation: he is committed to a gap between the judgement that something is morally right and the motivation to act accordingly. As a matter of fact, I will argue that there are two gaps. The first and less controversial one has to do with the fact that Leibniz reconciles his psychological egoism with ethical altruism through his account of love. The second gap between moral judgements and motivation is a more fundamental one: Leibniz denies that there are any necessary connections between beliefs and motivation, or even more generally, between perceptions and appetitions.     

Aesthetics and the Problem of Evil

Much of Western speculative metaphysics has subscribed to what has been called “explanatory rationalism,” which holds that there is a reason for everything that is and for the way everything is. Theodicies, or metaphysical attempts to solve the problem of evil, have relied on a special application of this principle of explanatory rationalism, namely, the principle of plenitude, which holds that the evil in the world is a necessary ingredient in the world's overall perfection or degree of reality. This essay argues that the principle of plenitude is aesthetically motivated, and that only in art and perhaps in revealed religion can the demands of explanatory rationalism be satisfied.     

Reasons or rationalizations: The role of principles in the moral dumbfounding paradigm

Moral dumbfounding occurs when people maintain a moral judgment even though they cannot provide reasons for it. Recently, questions have been raised about whether dumbfounding is a real phenomenon. Two reasons have been proposed as guiding the judgments of dumbfounded participants: harm-based reasons (believing an action may cause harm) or norm-based reasons (breaking a moral norm is inherently wrong). Participants in that research (see Royzman, Kim, & Leeman, 2015), who endorsed either reason were excluded from analysis, and instances of moral dumbfounding seemingly reduced to non-significance. We argue that endorsing a reason is not sufficient evidence that a judgment is grounded in that reason. Stronger evidence should additionally account for (a) articulating a given reason and (b) consistently applying the reason in different situations. Building on this, we develop revised exclusion criteria across three studies. Study 1 included an open-ended response option immediately after the presentation of a moral scenario. Responses were coded for mention of harm-based or norm-based reasons. Participants were excluded from analysis if they both articulated and endorsed a given reason. Using these revised criteria for exclusion, we found evidence for dumbfounding, as measured by the selecting of an admission of not having reasons. Studies 2 and 3 included a further three questions relating to harm-based reasons specifically, assessing the consistency with which people apply harm-based reasons across differing contexts. As predicted, few participants consistently applied, articulated, and endorsed harm-based reasons, and evidence for dumbfounding was found.     

PHILOSOPHER OF PRECISION AND SOUL: INTRODUCING WALKER PERCY

This article introduces the work of philosopher‐novelist Walker Percy to the Zygon: Journal of Religion and Science readership. After some biographical and contextual preliminaries, I suggest that the conceptual collecting feature to Percy's work is his critique of abstractionism manifest in a tripartite congruence of Cartesianism, derivatively misapplied science, and social atomism.     

Mental powers and the soul in Kant’s Subjective Deduction and the Second Paralogism

Kant’s claim in the Subjective Deduction that we have multiple fundamental mental powers appears to be susceptible to some a priori metaphysical arguments made against multiple fundamental mental powers by Christian Wolff who held that these powers would violate the unity of thought and entail that the soul is an extended composite. I argue, however, that in the Second Paralogism and his lectures on metaphysics, Kant provides arguments that overcome these objections by showing that it is possible that a composite could ground the unity of thought, that properties are powers and therefore the soul could possess multiple powers, and the soul is a thing in itself so it cannot be an extended composite. These arguments lend additional support to the attribution of multiple mental powers to us in the Subjective Deduction.     

The Enlightenment That Won't Go Away: Modernity's Crux

The Critical Process unleashed by the Enlightenment and endlessly resharpening itself to this day has mortally wounded the God of Deism, maybe also of theism, even of Christianity. A temptation of Christian theology is to retreat in denial into an updated version of Deism, seemingly granting full license to modern science but only so long as it does not impugn God's love. The alternative here proposed is to ride out The Critical Process, in fact to encourage it, all the way into modernity's crux: How can a design that is not benign still be divine? The Christian reply is: through a real death of God and of ourselves as well, and through resurrections beginning now, thus freeing The Critical Process from the illusion of insuring our survival and, instead, for the honest Enlightenment task of merely telling the truth.     

Thinking About a Word—Love,for Example

What is it we do when we philosophize about a word? How are we to act as we ask the philosophical question par excellence, “What is … ?” These questions are addressed here with particular focus on Troy Jollimore's Love's Vision and contemporary theories of love. Jollimore's rationalist account of love, based on a specific understanding of “reasons for love,” illustrates a particular philosophical mistake: When we think about a word, we are prone to believe that even though “the sense of the word” that we investigate may be up for grabs, the other words we use when we do these investigations are not. Jollimore's exploration of love is guided by specific conceptions of “reasons” and “rationality” that remain unquestioned. The article argues that we may have to rethink a great number of words as we embark on the task of uncovering the sense of one word.