In response to Coste's French translation of a major English work on epistemology, this man wrote his New Essays on the Human Understanding.  
He presented a concrete and abstract theory of motion in his New Physical Hypothesis, while his other early works include a translation of the Theatetus and a dialogue, Pacidius Philalethi, which deals with the labyrinth of the continuum.  He concluded that "love of God" is our greatest good in his essay "The Principles of Nature and Grace," while another of his late works concludes that under a perfect government no good act would be unrewarded, and no bad deed unpunished.  Those works were both written in 1714, and the first was prepared for Prince Eugene of Savoy.  In response to Coste's French translation of a major English work on epistemology, this man wrote his New Essays on the Human Understanding.  FTP, name this German philosopher of the Theodicy and the Monadology.
He presented a concrete and abstract theory of motion in his New Physical Hypothesis, while his other early works include a translation of the Theatetus and a dialogue, Pacidius Philalethi, which deals with the labyrinth of the continuum.  
Gottfried Wilhelm Leibniz