Medieval discussions of mental representation were constrained in essential ways by Thomas Aquinas' doctrine of intelligible species. Aquinas' view of a formal mediation of sensible reality in intellectual knowledge was not universally accepted. In particular, after his death, a long series of controversies developed about the necessity of intelligible species. (These were analyzed in the first volume of this study.) The first part of this book deals with Renaissance controversies, discussing Peripatetics, Neoplatonics, and a group of relatively independent authors. In the second part, developments of late Scholasticism, and the elimination of the intelligible species in modern non-Aristotelian philosophy are scrutinized. Particular attention is paid to the possible roots of the seventeenth-century theories of ideas in traditional philosophy.

Berkeley’s critique of abstract ideas in the Introduction to Principles of Human Knowledge has provoked a great deal of commentary of various sorts. This anthology, first published in 1989, presents a selection of historically important and philosophically interesting discussions on Berkeley’s theories.

This book contextualizes David Hume's philosophy of physical science, exploring both Hume's background in the history of early modern natural philosophy and its subsequent impact on the scientific tradition. Drawing on Cartesian cosmology and Einstein's special relativity, and taking in topics including experimentalism, causation, laws of nature, metaphysics of forces, mathematics' relation to nature, and the concepts of space and time, this book deepens our understanding of Hume's relation to natural philosophy. It does so in addition by situating Hume's thought within the context of other major philosophers and scientists, including Descartes, Locke, Boyle, Kant, Newton, and Leibniz. Demonstrating above all Hume's understanding of the fluid relationship between philosophy and science, Hume's Natural Philosophy and Philosophy of Physical Science will provide new insights for historians and philosophers of science.