Darwin’s first two, relatively complete, explicit articulations of his theorizing on evolution were his Essay of 1844 and On the Origin of Species published in 1859. A comparative analysis concludes that they espoused radically different theories despite exhibiting a continuity of strategy, much common structure and the same key idea. Both were theories of evolution by means of natural selection. In 1844, organic adaptation was confined to occasional intervals initiated and controlled by de-stabilization events. The modified descendants rebalanced the particular (...) “plant and animal forms … unsettled by some alteration in their circumstances.” But by 1859, organic adaptation occurred continuously, potentially modifying the descendants of all organisms. Even natural selection, the persistent core of Darwin’s theorizing, does not prove to be a significant basis for theory similarity. Consequently, Darwin’s Origin theory cannot reasonably be considered as a mature version of the Essay. It is not a modification based on adjustments, further justifications and the integration of a Principle of Divergence. The Origin announced a new “scientific paradigm” while the Essay did little more than seemingly misconfigure the operation of a novel mechanism to extend varieties beyond their accepted bounds, and into the realm of possible new species. Two other collections of Darwin’s theorizing are briefly considered: his extensive notes of the late 1830s and his contributions to the famous meeting of 1 July 1858. For very different reasons, neither constitutes a challenge to the basis for this comparative study. It is concluded that, in addition to the much-debated social pressures, an unacknowledged further reason why Darwin did not publish his theorizing until 1859, could have been down to his perceptive technical judgement: wisely, he held back from rushing to publish demonstrably flawed theorizing. (shrink)

Atheism has achieved renewed vigor in the West in recent years with a spate of bestselling books and growing membership in secularist and rationalist organizations, but what exactly is the nature of this peculiar form of non-belief? This article sets the context for the emergence of the ‘New Atheism’ with a review of the dominant theory of atheism’s dialectical and theological origins, and an examination of major historical episodes in atheistic thought. The author argues that a significant development has received (...) insufficient attention: the 19th-century split in atheism that produced two distinct streams of criticism. The first is scientific atheism, closely associated with Darwinism and Enlightenment rationalism. The second is humanistic atheism, aligned with the rise of the social sciences and pioneered by Marx and Feuerbach. The contemporary atheist movement is primarily rooted in the scientific tradition, excluding the humanistic approach on epistemological and political grounds, though emerging tensions within the movement suggest that the humanistic tradition still plays a role. The relationship between these two approaches within the movement should be a focus of future research. (shrink)

ABSTRACT ‘Modus Darwin’ is the name given by Elliott Sober to a form of argument that he attributes to Darwin in the Origin of Species, and to subsequent evolutionary biologists who have reasoned in the same way. In short, the argument form goes: similarity, ergo common ancestry. In this article, I review and critique Sober’s analysis of Darwin’s reasoning. I argue that modus Darwin has serious limitations that make the argument form unsuitable for supporting Darwin’s conclusions, and that Darwin did (...) not reason in this way. (shrink)

This article argues against scientistic arguments of the redundancy of religious belief structures due to the explicability of the physical world, as exemplified here by a discussion of the “popular science” of Richard Dawkins and Lawrence Krauss. It is claimed that the root of belief in “sense” is in animation, rather than in cosmological creation myths. The paper displays that the ideal of the absolute is linguistically signified by the termini “survival” and “freedom” in human understanding. However, it does not (...) appear through human understanding as an illusion stemming from the illegitimate inference of a pantheistic spirit or prime mover. Instead, human reason builds an analytical understanding upon a fundamental instinct, which long predates human-level consciousness. Approaching the subject’s role in the physical world, the article displays that animation itself, as the primal form of awareness and agency, is the urge to overcome an inherent antagonism in the structure of being. It is argued that the cosmological argument is mirrored by an argument that has no strict theoretical cogency, but is likewise irreducible and irrefutable by science. Science investigates the object empirically but has limited explanatory capabilities when it comes to subjective being. (shrink)

The influence of the evolutionary theory is widespread in modern worldview. Due to its great explanatory power and pervasiveness, the theory of evolution should be used as the organizing theme in biology teaching. For this purpose, the essential concepts of phylogenetic systematics are useful as a didactic instrument. The phylogenetic method was the first objective set of rules to implement in systematics the evolutionary view that the organisms are all connected at some hierarchical level due to common ancestry, as suggested (...) by Darwin and Wallace. Phylogenetic systematics was firstly proposed by the German Entomologist Willi Hennig in 1950 and had considerably importance in the decrease of the role of essentialism and subjectivity in classificatory studies, becoming one of the paradigms in biological systematics. Based on cladograms, a general phylogenetic reference system allows to the depiction and representation of large amounts of biological information in branching diagrams. Besides, the phylogenetic approach sheds light upon typical misconceptions concerning evolution and related concepts that directly affect students' comprehension about the evolutionary process and the hierarchical structure of the living world. The phylogenetic method is also a form of introducing students to some of the philosophical and scientific idiosyncrasies, providing them the ability to understand concepts such as hypothesis, theory, paradigm and falsifiability. The students are incited to use arguments during the process of accepting or denying scientific hypotheses, which overcomes the mere assimilation of knowledge previously elaborated. (shrink)

In recent years both philosophers and scientists have asked whether or not our current kinds of mental disorder—e.g., schizophrenia, depression, bipolar disorder—are natural kinds; and, moreover, whether or not the search for natural kinds of mental disorder is a realistic desideratum for psychiatry. In this dissertation I clarify the sense in which a kind can be said to be “natural” or “real” and argue that, despite a few notable exceptions, kinds of mental disorder cannot be considered natural kinds. Furthermore, I (...) contend that psychopathological phenomena do not cluster together into kinds in the way that paradigmatic natural kinds (e.g., chemical kinds and species) do; and, in light of this fact, I conclude that the normative ideal of natural classification—i.e. classifying real or natural kinds—is not appropriate as a general strategy for psychiatry. In the conclusion to this dissertation I propose an alternative way forward. Rather than assuming a priori that psychopathological phenomena cluster together into kinds, a more tractable and theoretically promising approach would be to first explain how particular kinds of experiences and behaviours—e.g, hallucinations, delusions, disorganized thinking, mania, low mood, etc.—are produced. (shrink)