The texts of the great Enlighteners Hobbes, Descartes, and More are the subject of Margaret Cavendish's "Reckoning with Natural Philosophy." In her correspondence with a philosophically curious lady of the upper class, she dismantles their theories. However, what is most important to her is to present her own views on natural philosophy. With the title "Reckoning with Natural Philosophy," a translation of Margaret Cavendish's Philosophical Letters is now available, a work that makes her philosophy very accessible and vivid.