Scientists must sometimes choose between competing definitions of key terms. The degree to which different definitions facilitate important discoveries should ultimately guide decisions about which terms to accept. In the short run, rules of thumb can help. One such rule is to regard with suspicion any definition that turns a seemingly important empirical matter into an a priori exercise. Several prominent definitions of ecological “stability” are suspect, according to this rule. After evaluating alternatives, I suggest that the faulty definitions resulted (...) from an overemphasis on population dynamics in community ecology. Machine metaphors of nature may have given rise to a related problem of experimental design. (shrink)

The Alleged Turning Point in European Philosophy Existentialists, especially those who follow either Heidegger or Jaspers, find a great deal objectionable in what they variously call ‘scientism’, ‘scientific rationalism’, and ‘positivism’. In this article I shall discuss one of the alleged defects of scientific rationalism, that it recognizes only one kind of truth—the kind that existentialists call ‘objective truth’. ‘One great achievement of existential philosophy,’ writes William Barrett, ‘has been a new interpretation of the idea of truth in order to (...) point out that there are different kinds of truth, where a rigid scientific rationalism had postulated but one kind: objective scientific truth.’ Not only scientific rationalists but traditional metaphysicians from Plato to Aquinas and Hegel are judged to be equally at fault here: they too have failed to recognize any truth other than the objective variety. It was Kierkegaard who for the first time effectively challenged the assumptions shared by scientific rationalists and traditional metaphysicians. Kierkegaard, in Barrett's words, ‘had to re-open the whole question of the meaning of truth … his stand on the question may well have marked a turning point in European philosophy.’. (shrink)

The following study aims to articulate the key problems, doctrines, concepts and contributions of the conventionalist philosophers. Following the preliminary clarifications, the main body of this dissertation will proceed to a critical and analytical survey of key conventionalist philosophers and their contribution to the development of the convention­ alist outlook. This study will conclude with a brief statement about some of the important contributions to epistemology that can be traced to the work of conventionalists.