Cultivating Knowledge highlights the agency, creativity, opportunism, and performance of individuals and communities carving out successful lives in a changing agricultural landscape. The practice of sustainable agriculture on the farm—let alone the global challenge of feeding or clothing the world—is a social question, not a technological one. Farmers do not make simple cost-benefit analyses when evaluating new technologies and options. Their choices have dire consequences, sometimes leading to death. Through an ethnography of seeds, Andrew Flachs investigates the human responses to global agrarian change.