What is knowledge? Is it the same as opinion or truth? Do you need to be able to justify a claim in order to count as knowing it? How can we know that the outer world is real and not a dream? Questions like these have existed since ancient times, and the branch of philosophy dedicated to answering them - epistemology - has been active for thousands of years. In this thought-provoking Very Short Introduction, Jennifer Nagel considers the central problems and paradoxes in the theory of knowledge and draws attention to the ways in which philosophers and theorists have responded to them. By exploring the relationship between knowledge and truth, and considering the problem of scepticism, Nagel introduces a series of influential historical and contemporary theories of knowledge, incorporating methods from logic, linguistics, and psychology, using a number of everyday examples to demonstrate the key issues and debates. ABOUT THE SERIES: The Very Short Introductions series from Oxford University Press contains hundreds of titles in almost every subject area. These pocket-sized books are the perfect way to get ahead in a new subject quickly. Our expert authors combine facts, analysis, perspective, new ideas, and enthusiasm to make interesting and challenging topics highly readable.

He author argues that the sceptical thesis is motivated by a persistent philosophical problem that calls the very possibility of knowledge about the external world into question, and that the sceptical thesis is the only acceptable answer to this problem as traditionally posed.

This book explores the nature of scepticism, asking when it is legitimate, for example as the driver of new ideas, and when it is problematic. It also tackles how scepticism is related to contemporary social and political phenomena, such as fake news, and examines a radical form of scepticism which maintains that knowledge is impossible.

The first of two volumes collecting the published work of one of the greatest living ancient philosophers, M.F. Burnyeat.

We live in an age of skepticism. Our society places such faith in empirical reason, historical progress, and heartfelt emotion that it’s easy to wonder: Why should anyone believe in Christianity? What role can faith and religion play in our modern lives? In this thoughtful and inspiring new book, pastor and New York Times bestselling author Timothy Keller invites skeptics to consider that Christianity is more relevant now than ever. As human beings, we cannot live without meaning, satisfaction, freedom, identity, justice, and hope. Christianity provides us with unsurpassed resources to meet these needs. Written for both the ardent believer and the skeptic, Making Sense of God shines a light on the profound value and importance of Christianity in our lives.