Henry Morton Stanley's first trans-Africa exploration for and successfully found the missionary and explorer Livingstone, greeting him with the famous (though disputed) words: “Dr. Livingstone, I presume?” Stanley's journey had four principal aims, to: There was controversy among earlier explorers as to whether these lakes and rivers were connected to each other and the Nile. Richard Burton thought that Lake Victoria might have a southern inlet, possibly from Lake Albert, meaning that the source of the Nile was not Lake Victoria as Speke had argued. Samuel Baker thought that Lake Albert might have an inlet from Lake Tanganyika. Livingstone thought that Lualaba was the source of
Richard Francis Burton (commonly called "The Arabian Nights" in English after early translations of Antoine Galland's French version); the publication of the "Kama Sutra" in English; and a journey with John Hanning Speke as the first Europeans to visit the Great Lakes of Africa in search of the source of the Nile. His works and letters extensively criticized colonial policies of the British Empire, even to the detriment of his career. Although he aborted his university studies, he became a prolific and erudite author and wrote numerous books and scholarly articles about subjects including human behaviour, travel, falconry, fencing, sexual practices and ethnography.