 Several historians (e.g., Hooykaas 1972) have argued that Christianity was instrumental to the development of Western science. Peter Harrison (2007) maintains that the doctrine of original sin played a crucial role in this, arguing there was a widespread belief in the early modern period that Adam, prior to the Fall, had superior senses, intellect, and understanding. As a result of the Fall, human senses became duller, our ability to make correct inferences was diminished, and nature itself became less intelligible. Postlapsarian humans (i.e., humans after the Fall) are no longer able to exclusively rely on their a priori reasoning to understand nature. They must supplement their reasoning and senses with observation through specialized instruments, such as microscopes and telescopes. As the experimental philosopher Robert Hooke wrote in the introduction to his Micrographia: