Sahotra Sarkar is Professor of Integrative Biology and of Philosophy at the University of Texas at Austin. He is author of "Genetics and Reductionism: A Primer" (1998), "Molecular Models of Life "(2004), and "Biodiversity and Environmental Philosophy" (2005); editor of several books, including "The Philosophy and History of Molecular Biology "(1996), the six-volume "Science and the Philosophy in the Twentieth Century: Basic Works of Logical Empiricism" (1996), and co-editor of the two-volume "The Philosophy of Science: An Encyclopedia "(2005).