Abstract

By his own account, Leibniz first encountered the True Intellectual System of the Universe of the Cambridge Platonist Ralph Cudworth during his visit to Rome in the spring of 1689, although the work itself had been published just over a decade earlier in 1678. Leibniz would later report to Cudworth’s daughter, Damaris Masham, that he had been delighted to see the wisdom of the ancients “accompanied by solid reflections”. He had certainly taken the book seriously, devoting sufficient attention to make copious critical notes to the first part. Some years later, towards the end of 1703 or early in 1704, Masham sent Leibniz a copy of her father’s True Intellectual System [TIS]. So began a two-year correspondence between Leibniz and Masham.