presents a compact account of the basic principles of the theory of knowledge.

is Distinguished University Professor of Philosophy at the University of Pittsburgh where he has also served as Chairman of the Philosophy Department and Director of the Center for Philosophy of Science. He is the recipient of eight honorary degrees from universities on three continents. He was awarded the Alexander von Humboldt Prize for Humanistic Scholarship in 1984, the Belgian Prix Mercier in 2005, the Aquinas Medal of the American Catholic Philosophical Association in 2007, the Founder’s Medal of the Metaphysical Society of America in 2016, and the Helmholtz Medal of the Germany Academy of Sciences (Berlin/Brandenburg) in 2016. In 2011 he received the premier cross of the Order of Merit (Bundesverdienstkreuz Erster Klasse) of the Federal Republic of Germany in recognition of contributions to philosophy. Fourteen books about Rescher’s philosophy have been published in five languages and ten doctoral dissertations have been dedicated to his work.