  Although Leibniz continued to refine, develop, and extend his views  on the laws of motion and impact, his work in the philosophy of  physics was most famously capped by his correspondence with Samuel Clarke [10]  The controversy between Leibniz and Clarke began when the  Princess of Wales passed along to  Clarke in 1715 a letter written by Leibniz decrying the decline of  religion in England inspired by the rise of Newton’s natural  philosophy. Taking place against the backdrop of a bitter dispute  over the priority of the calculus, Clarke responded in Newton’s  defense and a series of five letters and replies were exchanged.  Among the many topics covered in the correspondence, the letters are  best known for the opposing views of space and time which they offer: Leibniz defending roughly the view that space is an ideal system of  relations holding between bodies, and Clarke defending the view that  space is something more like a container in which bodies are located  and move. The increasingly detailed and pointed exchange ended only  with Leibniz’s death in 1716, with Clarke, in the historical sense at least, having the last word. 