Rab Butler, who as Under-Secretary for India helped pilot the Act through the House of Commons, later wrote that it helped to set India on the path of Parliamentary democracy. Butler blamed Jinnah for the subsequent secession of Pakistan, likening his strength of character to that of the Ulster Unionist leader Edward Carson, and wrote that "men like Jinnah are not born every day", although he also blamed Congress for not having done enough to court the Muslims. In 1954 Butler stayed in Delhi, where Nehru, who Butler believed had mellowed somewhat from his extreme views of the 1930s, told him that the Act, based on the English constitutional principles of Dicey and Anson, had been the foundation of the Indian Independence Bill.