This work investigates the complex, often overlapping relationship between scientific inquiry and religious belief in sixteenth- and seventeenth-century Europe, specifically focusing on the concept of heterodoxy. Authors Ian Maclean and John Brooke utilize historical analysis to challenge the modern assumption that science and religion have always been distinct, separate spheres. By examining the intellectual lives of figures ranging from Galileo and Newton to lesser-known thinkers, the authors argue that deviations from orthodoxy in one domain frequently informed or mirrored deviations in the other.

Scholars and historians of science frequently cite this text as a nuanced contribution to the study of early modern intellectual history. Readers often note the academic density of the prose, which provides a rigorous examination of the interplay between natural philosophy and religious doctrine.