This book investigates the compatibility of philosophical skepticism with a naturalistic view of human belief and experience. P. F. Strawson, a prominent 20th-century analytic philosopher, examines the tension between the demand for rational justification of our beliefs and the natural, instinctive way we form them. He argues for a form of naturalism that acknowledges the limitations of skeptical challenges while maintaining the validity of our common-sense conceptual framework.

Philosophers and students of analytic tradition frequently cite this work as a concise yet profound contribution to the debate between skepticism and naturalism. Experts highlight the clarity of Strawson's prose, noting that it serves as an accessible entry point into complex epistemological problems.