Neven Sesardić

The critics of "hereditarianism" often claim that any attempt to explain human behavior by invoking genes is confronted with insurmountable methodological difficulties. They reject the idea that heritability estimates could lead to genetic explanations by pointing out that these estimates are strictly valid only for a given population and that they are exposed to the irremovable confounding effects of genotype-environment interaction and genotype-environment correlation. I argue that these difficulties are greatly exaggerated, and that we would be wrong to regard them as presenting a fundamental obstacle to the search for genetic explanations. I also show that, to the extent they are cogent, these objections may prove to be even more damaging to the "environmentalist" standpoint

Political imputations in science are notoriously a tricky business. I addressed this issue in the context of the nature–nurture debate in the penultimate chapter of my book Making Sense of Heritability (Cambridge U. P. 2005). Although the book mainly dealt with the logic of how one should think about heritability of psychological differences, it also discussed the role of politics in our efforts to understand the dynamics of that controversy. I first argued that if a scholar publicly defends a certain view (say, hereditarianism) in the debate about IQ, race and genetics this fact alone cannot justify attributing a political motivation to that person. But then later I suggested that the pressure of political correctness could explain some peculiarities of the contemporary controversy about the heritability of group differences in IQ. Several reviewers of my book raised a tu quoque objection. Am I not doing here the same thing that I condemn others for?

This article presents a criticism of the widespread assumption that the programme of the Vienna Circle has been proven to be unrealizable and, therefore, that it is today quite uninteresting and to be entirely abandoned. The basic aim of logical positivists was to raise philosophy to the rigour and high standards of contemporary science. It must be admitted that they were unsuccessful in their attempts to eliminate old-fashioned and conservative philosophy by proving it to be senseless. There is in fact no clearcut formal procedure to distinguish scientific philosophy from metaphysics. Nevertheless, the Vienna Cirlcle established its aimin a rather unusual, roundabout way. Its method of dealing with various concrete problems gave a picture of what scientific philosophy should be like. Two main features of its method were first, logical precision and clarity in thinking, and second, sticking to facts regardless of our emotional attitude towards them. Thiswas a major turning point in philosophy representing a break with its tradition of irrationalism and sentimentalism.

SummaryIn this article I am criticizing Davidson's claim that psychological description and explanation are impossible without a strong assumption of rationality of the subject. I am trying to dispute his thesis that presupposition of coherence between propositional attitudes must be treated as a constitutive principle of psychology which fundamentally differentiates this science from physics and precludes the existence of strict psycho‐physical laws. Philosophical and empirical arguments are brought forward tho show that Davidson overestimates the role of rationality considerations in psychology. There is no a priori reason why mental states should not be gradually included in a deterministic nomological net.RésuméDans cet article, je critique la thèse de Davidson selon laquelle la description et I'explication psychologiques sont impossibles si I'on ne fait pas I'hypothèse forte de la rationalité du sujet. Je conteste sa thése que la présuppositions d'une cohérence entre les attitudes propositionnelles doive être considérée comme un principe constitutif de la psychologie, principe qui la différencierait fondamentalement de la physique et interdirait I'existence de lois psycho‐physiques strictes. Des arguments philosophiques et empiriques sont produits pour montrer que Davidson surestime le rôle des considérations de rationalité en psychologie. II n'y a pas de raison a priori pour que des états mentaux ne soient pas graduellement introduits dans un réseau nomologique déterministe.ZusammenfassungIn diesem Artikel kritisiere ich Davidsons Behauptung, wonach psychologische Beschreibun‐gen und Erklärungen ohne starke Annahmen bezüglich der Rationalität des subjektes nicht mög‐lich sind. Ich versuche, die These zu widerlegen, der gemäss die Voraussetzung der Kohärenz zwischen propositionalen Haltungen als Konstitutives Prinzip der Psychologie betrachten werden muss, das diese Wissenschaft grundlegend von der Physik unterscheidet und deshalb auch die Möglichkeit von strenge psycho‐physischen Gesetzen ausschliesst. Philosophische und empirische Argumente werden vorgelegt urn zu zeigen, dass Davidson die Rolle von Rationalitätserwägungen in der Psychologie überschätzt. Es gibt keine apriorischen Gründe dafür, dass mentale Zustände nicht nach und nach in ein deterministisches Netzwerk von Gesetzen eingefügt werden könnten