Shapin’s essays collected here include reflections on the historical relationships between science and common sense, between science and modernity, and between science and the moral order. They explore the relevance of physical and social settings in the making of scientific knowledge, the methods appropriate to understanding science historically, dietetics as a compelling site for historical inquiry, the identity of those who have made scientific knowledge, and the means by which science has acquired credibility and authority. This wide-ranging and intensely interdisciplinary collection by one of the most distinguished historians and sociologists of science represents some of the leading edges of change in the scholarly understanding of science over the past several decades.