An evolutionary approach to ethics supports, to some extent, the sceptical meta-ethics found by some of the Greek sophists and Nietzsche. On the other hand, a modern naturalistic account on the origin and nature of morality, leads to somewhat different conclusions. This is demonstrated with an answer to three philosophical questions: does real freedom exist?, does the good, or real virtue, exist?, does life have a meaning?

In contrast to many other models of human evolution the "balance of power" theory of Alexander has a clear answer to the question why a runaway selection process for unique social and moral capacities occurred in our ancestry only and not in other species: "ecological dominance" is hypothesized to have diminished the effects of "extrinsic" forces of natural selection such that within-species, intergroup competition increased (Alexander, 1989). Alexander seems to be wrong, however, in his claim that already the common HUCHIBO (...) (Humans, Chimps, Bonobo's)-ancestor has crossed the ecological dominance barrier. In this paper an adapted version of Alexander's model is presented and several different ways are proposed to make this adapted version testable. A preliminary survey of the available paleontological and paleoecological data suggests that there is some evidence of a less vulnerable position towards predators in early Homo and that there are clear signs related to a crossing of the ecological dominance barrier in Homo sapiens sapiens. (shrink)

Chapter 1 (To know in order to survive) & Chapter 2 (A critique of evolved reason) explain human knowledge and its limits from an evolutionary point of view. Chapter 3 (Captured in our Cockpits) explains the evolution of consciousness, using value driven decision theory. Chapter 4-6 (Chapter 4 Sociobiology, Chapter 5 Culture: the Human Arena), Chapter 6, Genes, Memes, and the Environment) show that to understand culture you have at least to deal with 4 levels: genes, brains, the environment, culture. (...) Chapter 7-8 (Why some apes became humans) give a model of human evolution in which Alexander's concept of 'ecological dominace' plays a crucial role. (shrink)

Synthesis of different models about the origin of morality with a discussion about possible normative consequences.

One hundred years ago, Roy Wood Sellars' "Evolutionary Naturalism" (1922) was published, a somewhat forgotten milestone in the development of a non-reductionist naturalism. Sellars did not yet speak of emergence but of "novelty", but saw the importance of systemic properties. He underestimated Darwin and the importance of studying animal behaviour, so some of his insights seem outdated. On the other hand, he was ahead of his time with ideas that are still valuable today. He therefore deserves a place in the (...) development of evolutionary naturalism and in the history of philosophy in general. (shrink)

Evolutionary epistemology (Lorenz, Vollmer) and value-driven decision theory (Pugh) are used to explain the fundamental properties of consciousness. It is shown that this approach is compatible with global workspace theory (Baars) and global neuronal workspace theory (De Haene). The emotions are, however, that what drives consciousness. A hypothetical evolutionary tree of the emotions is given – intended to show that consciousness evolves and is probably qualitatively different in different groups of animals.

Evolutionary epistemology explains knowledge as an adaptation (or series of adaptations) which enables animals to behave adaptively in their environment. The aim of knowledge, then, is to act. Our knowledge-apparatus was never designed to understand the nature of the universe.

Lecture on Nietzsche's relativism and perspectivism given at a conference on the 'crisis of reason' in Amersfoort, the Netherlands, October 26, 1991. Nietzsche claims that truth does not exist and knowledge is not possible, because knowledge serves life and is bound to an organic position. In fact, this is a paradox that refutes itself. Knowledge has evolved precisely because organisms must have limited, perspectivistic knowledge of their environment from a subjective point of view. In science, subjectivity can even be transcended (...) to some extent by making models that take into account the effects of our subjective experience of the world. The fact that theories are ‘just models’, ‘just interpretations’ does not mean that knowledge is impossible, because models and interpretations can be improved, corrected and be more or less adequate. In fact, Nietzsche relativism is incompatible with his metaphysical, psychological and ethical claims which implicitly claim a kind of philosophical or scientific progress. (shrink)

Philosophical questions can often be answered using evolutionary biology and evolutionary psychology. Of course, one needs a sound epistemology and philosophy os science to do so. Phenomenology and hermeneutics offer no escape route, however, because they are based on a wrong model of science. Evolutionary biology can explain teleology, the organization of nature, altruïsm, morality, and even our quest for meaning.

There is still too little attention for unique status of evolutionary explanations within philosophy, one hundred and fifty years after Darwin's 'Descent of Man' (1871). Evolutionary explanations clarify characteristics of organisms without getting stuck in genetic, physiological or mechanical details. You don't need to know exactly how the colors of a peacock’s tail originate to know why she has so many eyes: females see how healthy and strong males are. In the same way, an evolutionary explanation of consciousness is possible (...) without fully understanding the responsible neural networks. In this way we can better understand the role of consciousness in the formation of behavior and we do not fall into the trap of seeing it only as a side effect. Moreover, an evolutionary explanation sheds light on the role of emotions in consciousness and on their different manifestations in humans and other animals. (shrink)

Relatively short Dutch introduction to an evolutionary approach to morality. A synthesis is given of various models of moral evolution. Some remarks are made on a way to look at the evolution of a compatibilistic 'free will' and a model is given of a way in which the 'good' can be understood as the results of shared interests (which, of course, gives an incomplete model, but at the same time throws a lot of light on the way in which we (...) have to resolve ethical issues). (shrink)

Evolution never stops. Stress is often a manifestation of competition which seems to drive human gene-culture coevolution. A popular, Dutch account on evolution in everyday life. People often claim that we are thoroughly cultural beings, but culture is based on a series of talents which are a product of directional and stabilizing selection. Culture also presupposes certain psychological characteristics. People adopt and change culture to fit their biopsychological needs.

Contrary to chimpanzees and bonobos, humans display long-term exclusive relationships between males and females. Probably all human cultures have some kind of marriage system, apparently designed to protect these exclusive relationships and the resulting offspring in a potentially sexual competitive environment. Different hypotheses about the origin of human pair-bonds are compared and it is shown how they may refer to different phases of human evolution.

This paper was published in an issue of the ANTW, Dutch General Journal of Philosophy, dedicated to the work of Paul Churchland. It criticizes Churchland for neglecting the relationships of animals to their environments and their innate subjectivity, which guides them through their environment. The concept of an emotional a priori is introduced, 'the innate structures of experience', analogue to Kant's cognitive a priori. Subjectivity is an evolved property which enables organisms to adapt their genetic interests to a particular environment.