Between the Revolution and the Civil War, the dialogue of religious skepticism and faith profoundly shaped America. Although usually rendered nearly invisible, skepticism touched-and sometimes transformed-more lives than might be expected from standard accounts. This book examines Americans wrestling with faith and doubt as they tried to make sense of their world.

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.

Americans have long acknowledged a deep connection between evangelical religion and democracy in the early days of the republic. This is a widely accepted narrative that is maintained as a matter of fact and tradition—and in spite of evangelicalism’s more authoritarian and reactionary aspects. In Conceived in Doubt, Amanda Porterfield challenges this standard interpretation of evangelicalism’s relation to democracy and describes the intertwined relationship between religion and partisan politics that emerged in the formative era of the early republic. In the 1790s, religious doubt became common in the young republic as the culture shifted from mere skepticism toward darker expressions of suspicion and fear. But by the end of that decade, Porterfield shows, economic instability, disruption of traditional forms of community, rampant ambition, and greed for land worked to undermine heady optimism about American political and religious independence. Evangelicals managed and manipulated doubt, reaching out to disenfranchised citizens as well as to those seeking political influence, blaming religious skeptics for immorality and social distress, and demanding affirmation of biblical authority as the foundation of the new American national identity. As the fledgling nation took shape, evangelicals organized aggressively, exploiting the fissures of partisan politics by offering a coherent hierarchy in which God was king and governance righteous. By laying out this narrative, Porterfield demolishes the idea that evangelical growth in the early republic was the cheerful product of enthusiasm for democracy, and she creates for us a very different narrative of influence and ideals in the young republic.

Why are white evangelicals the most skeptical major religious group in America regarding climate change? Previous scholarship has pointed to cognitive factors such as conservative politics, anti-science attitudes, aversion to big government, and theology. Drawing on qualitative fieldwork, The Gospel of Climate Skepticism reveals the extent to which climate skepticism and anti-environmentalism have in fact become embedded in the social world of many conservative evangelicals. Rejecting the common assumption that evangelicals’ skepticism is simply a side effect of political or theological conservatism, the book further shows that between 2006 and 2015, leaders and pundits associated with the Christian Right widely promoted skepticism as the biblical position on climate change. The Gospel of Climate Skepticism offers a compelling portrait of how during a critical period of recent history, political and religious interests intersected to prevent evangelicals from offering a unified voice in support of legislative action to address climate change.

In this work, Santayana analyzes the nature of the knowing process and demonstrates by means of clear, powerful arguments how we know and what validates our knowledge. The central concept of his philosophy is found in a careful discrimination between the awareness of objects independent of our perception and the awareness of essences attributed to objects by our mind, or between what Santayana calls the realm of existents and the realm of subsistents. Since we can never be certain that these attributes actually inhere in a substratum of existents, skepticism is established as a form of belief, but animal faith is shown to be a necessary quality of the human mind. Without this faith there could be no rational approach to the necessary problem of understanding and surviving in this world. Santayana derives this practical philosophy from a wide and fascinating variety of sources. He considers critically the positions of such philosophers as Descartes, Euclid, Hume, Kant, Parmenides, Plato, Pythagoras, Schopenhauer, and the Buddhist school as well as the assumptions made by the ordinary man in everyday situations. Such matters as the nature of belief, the rejection of classical idealism, the nature of intuition and memory, symbols and myth, mathematical reality, literary psychology, the discovery of essence, sublimation of animal faith, the implied being of truth, and many others are given detailed analyses in individual chapters.

Recent polls report that 96% of Americans believe in God. Why is this? Why, despite the rise of science, technology, and secular education, are people turning to religion in greater numbers than ever before? Why do people believe in God at all?

Between the American Revolution and the Civil War, the dialogue of religious skepticism and faith shaped struggles over the place of religion in politics. It produced different visions of knowledge and education in an "enlightened" society. It fueled social reform in an era of economic transformation, territorial expansion, and social change. Ultimately, as Christopher Grasso argues in this definitive work, it molded the making and eventual unmaking of American nationalism. Religious skepticism has been rendered nearly invisible in American religious history, which often stresses the evangelicalism of the era or the "secularization" said to be happening behind people's backs, or assumes that skepticism was for intellectuals and ordinary people who stayed away from church were merely indifferent. Certainly the efforts of vocal "infidels" or "freethinkers" were dwarfed by the legions conducting religious revivals, creating missions and moral reform societies, distributing Bibles and Christian tracts, and building churches across the land. Even if few Americans publicly challenged Christian truth claims, many more quietly doubted, and religious skepticism touched--and in some cases transformed--many individual lives. Commentators considered religious doubt to be a persistent problem, because they believed that skeptical challenges to the grounds of faith--the Bible, the church, and personal experience--threatened the foundations of American society. Skepticism and American Faith examines the ways that Americans--ministers, merchants, and mystics; physicians, schoolteachers, and feminists; self-help writers, slaveholders, shoemakers, and soldiers--wrestled with faith and doubt as they lived their daily lives and tried to make sense of their world.

Based on two new studies, "American Grace" examines the impact of religion on American life and explores how that impact has changed in the last half-century.

With a new afterword Acts of Faith is a remarkable account of growing up Muslim in America and coming to believe in religious pluralism, from one of the most prominent faith leaders in the United States. Eboo Patel’s story is a hopeful and moving testament to the power and passion of young people—and of the world-changing potential of an interfaith youth movement.

Based on groundbreaking Barna Group research, unChristian uncovers the negative perceptions young people have of Christianity and explores what can be done to reverse them.