So after Sumner Welles resigned, the majority of the work on the UN charter was done by an interesting guy no-one remembers – Leo Pasvolsky. When he died in 1953, his New York Times obituary was subtitled “Wrote Charter of World Organization.” In a 1967 letter, Dean Acheson criticized American moralism in international affairs, which he saw as culminating in “that little rat Leo Pasvolsky’s United Nations.”