Of Knowledge and Faith is more than about a debate between science and religion; it proclaims a winner. It presents a hypothesis that dismisses Judeo-Christianity as mere superstition. In an increasingly technology-driven and informed society, ignorance excuses no one. Where Christianity still holds sway over poorer, developing countries, however, its harmful impact on the national psyche cannot be underestimated. Using history as his overarching guide, Philip L. Tan traces the facts and events that led to the improbable rise of Christianity from the second century onwards before encountering resistance from successive, secular movements, namely the Renaissance, the Scientific Revolution, the Enlightenment, the Industrial Revolution and the twentieth-century ideologies of socialism, communism and Nazism. Because of their intellect, humans have conquered their fear of the unknown, thereby realizing self-mastery. Of Knowledge and Faith draws ideas from an eclectic mix of disciplines --- history, religion, science, and philosophy --- to make the case for God's existence doubtful, a compelling reason why Christianity should not be taken for granted.