格蘭特是美國著名中世紀科學史傢，印第安納大學科學史和科學哲學係教授，1973-1979和1987-1990任係主任，專長中世紀科學、自然哲學、科學與宗教，1983年被任命為著名教授。獲得多項榮譽和奬勵，包括1992年的科學史最高奬薩頓奬。

Contrary to prevailing opinion, the roots of modern science were planted in the ancient and medieval worlds long before the Scientific Revolution of the seventeenth century. Indeed, that revolution would have been inconceivable without the cumulative antecedent efforts of three great civilisations: Greek, Islamic, and Latin. With the scientific riches it derived by translation from Greco-Islamic sources in the twelfth and thirteenth centuries, the Christian Latin civilisation of Western Europe began the last leg of the intellectual journey that culminated in a scientific revolution that transformed the world. The factors that produced this unique achievement are found in the way Christianity developed in the West, and in the invention of the university in 1200. As this 1997 study shows, it is no mere coincidence that the origins of modern science and the modern university occurred simultaneously in Western Europe during the late Middle Ages.