The paper characterizes Darwin's theory, providing a synthesis of recent historical investigations in this area. Darwin's reading of Malthus led him to appreciate the importance of population pressures, and subsequently of natural selection, with the help of the wedge metaphor. But, in itself, natural selection did not furnish an adequate account of the origin of species, for which a principle of divergence was needed. Initially, Darwin attributed this to geographical isolation, but later, following his work on barnacles which underscored the (...) significance of variation, and arising from his work on botanical arithmetic, he supposed that diversity allowed more places to be occupied in a given region. So isolation was not regarded as essential. Large regions with intense competition, and with ample variation spread by blending, would facilitate speciation. The notion of place was different from niche, and it is questioned whether Darwin's views on ecology were as modern as is commonly supposed. Two notions of struggle are found in Darwin's theory; and three notions of variation. Criticisms of his theory led him to emphasize the importance of variation over a range of forms. Hence the theory was populational rather than typological. The theory required a Lamarckian notion of inheritable changes initiated by the environment as a source of variation. Also, Darwin deployed a use/habit theory; and the notion of sexual selection. Selection normally acted at the level of the individual, though kin selection was possible. Group selection was hinted at for man. Darwin's thinking (and also the exposition of his theory) was generally guided by the domestic-organism analogy, which satisfied his methodological requirement of a vera causa principle. (shrink)

This thesis aims to explore Nietzsche's concept of individuality. Nietzsche, a radical and innovative thinker who attacks Christian morality and proclaims the death of God, provides us with a self-interpreting way to understand humanity and affirm life through self-overcoming and self-experimentation. Nietzsche's concept of individuality is his main philosophical concern. I first compare his perspective on human nature in Human, All Too Human, Daybreak and Beyond Good and Evil with Charles Darwin's, Sigmund Freud's and St Augustine's in order to examine (...) how his thinking differs from theirs with regard to the concept of human nature. Second, I turn to his On the Genealogy of Morals, in comparison with the thought of John Stuart Mill, analysing their criticism of Christian morality and discussing their different conceptions of individuality and the development of the self. The last chapter compares Nietzsche's The Anti-Christ, Twilight of the Idols and Ecce Homo with Ralph Waldo Emerson's philosophy of self-development, using this comparison to highlight the way in which Nietzsche expounds his concept of individuality and sets himself as a living example of an individual with autonomy and responsibility. Nietzsche attacks Christianity and argues that humanity can potentially be developed not through Christian morality but reflective self-interpretation. We shall not forget that being a self-developing individual is Nietzsche's chief aim although his arguments are too circuitous and controversial to be easily comprehended. His aim is not to offer some final, authoritative solution to these issues of the self and morality. In contrast, he offers us a new, uneven and perhaps dangerous way to understand humanity and modern culture. In order to achieve this, we need to interpret what he says from our own standpoints and also to interpret ourselves through self-reflection. Nietzsche's radical but insightful perspective is a means for guiding us to open our minds and affirm our lives through interpretation and experimentation. Then we might potentially overcome nihilism and become what we are: self-reflective individuals with free spirits. (shrink)

The nature of moral values has occupied philosophers and educationalists for centuries and a variety of claims have been made about their origin and status. One tradition suggests they may be thoughts in the mind of God; another that they are eternal truths to be reached by rational reflection (much like the truths of mathematics) or alternatively through intuition; another that they are social conventions; and another (from the logical positivists) that they are not verifiable facts but simply the expression (...) of emotional likes and dislikes. Standard introductory texts (e.g., Bowie 2004; Vardy and Grosch 1999) on the subject of ethics rarely mention Darwin or Darwinism (Mepham 2005 is a useful exception) possibly mindful of the fact that the relationship of evolutionary biology to moral questions has had a troublesome history. The effect of this has been that whole generations of moral philosophers have given the biological sciences a wide berth and consequently often remain poorly informed about recent advances in evolutionary thought and the neurosciences. On the other hand, scientists have developed interesting models of the evolution of the moral sentiments and are using new imaging techniques to explore the centres of the brain associated with emotion and motivation, but many have been fearful of committing the naturalistic fallacy and so have steered clear of extrapolating their findings to ethical questions. No one after all wants to be seen to be committing an elementary logical blunder. But in the last 20 years, evolutionary biologists have regained the confidence to explore the implications of evolution for the study of ethics (de Waal 1996; Wilson 1998; Wright 1994; Greene 2003). This paper is designed to encourage those entrusted with the teaching of ethics to be open to the potential of Darwinism as a source of ideas on the origins and status of ethical thought and behaviour. It is also hoped that it will illustrate for science educators the enormous explanatory power inherent in Darwinian thought. (shrink)