- The Oxford Handbook of Medieval Philosophy
- The Late Ancient Background to Medieval Philosophy
- Greek Philosophy
- Arabic Philosophy and Theology before Avicenna
- Avicenna and Afterwards
- Averroes and Philosophy in Islamic Spain
- Medieval Jewish Philosophy in Arabic
- Jewish Philosophy in Hebrew
- Latin Philosophy to 1200
- Latin Philosophy, 1200–1350
- Latin Philosophy, 1350–1550
- Medieval Philosophy after the Middle Ages
- Logical Form
- Logical Consequence
- Meaning: Foundational and Semantic Theories
- Mental Language
- States of Affairs
- Parts, Wholes and Identity
- Material Substance
- Mind and Hylomorphism
- Body and Soul
- Scepticism and Metaphysics
- Freedom of the Will
- Moral Intention
- Virtue and Law
- Natural Law
- Arguments for the Existence of God
- Philosophy and the Trinity
Abstract and Keywords
Medieval philosophers saw that sceptical arguments need to be taken seriously and paid close attention to their consequences. Yet, they also realized that these arguments are to be discussed in a metaphysical context and attempted to dissolve skeptical arguments by showing that they are in conflict with a number of basic metaphysical principles. This article discusses this close connection between epistemological and metaphysical issues by presenting two case studies, namely Thomas Aquinas's analysis of the demon hypothesis and John Buridan's reaction to the argument appealing to divine omnipotence. It suggests that one cannot understand how and why radical doubts were rejected or neutralized by medieval authors unless one pays attention to their explicit and implicit assumptions about the nature of knowledge claims and the methods for evaluating them.
Dominik Perler is Professor of Philosophy at Humboldt-Universität, Berlin. He works on medieval as well as early modern epistemology and philosophy of mind. His books include Theorien der Intentionalität im Mittelalter (2002) and Zweifel und Gewissheit. Skeptische Debatten im Mittelalter (2006).
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