19th-century philosophy of complexity from mathematics, astronomy, physics, chemistry, biology, and a new discipline called "sociology", which is the study of the "dynamics and statics of society". The American philosophers Charles Sanders Peirce and William James developed the pragmatist philosophy in the late 19th century. The twilight years of the 19th century in Britain saw the rise of British idealism, a revival of interest in the works of Kant and Hegel. Transcendentalism was rooted in Immanuel Kant's transcendence and German idealism, led by Ralph Waldo Emerson and Henry David Thoreau. The main belief was in an ideal spiritual state that 'transcends' the
David Livingstone chiefs and tribes, such as the Lozi, and the Lunda of Mwata Kazembe. The qualities and approaches which gave Livingstone an advantage as an explorer were that he usually travelled light, and he had an ability to reassure chiefs that he was not a threat. Other expeditions had dozens of soldiers armed with rifles and scores of hired porters carrying supplies, and were seen as military incursions or were mistaken for slave-raiding parties. Livingstone, on the other hand, travelled on most of his journeys with a few servants and porters, bartering for supplies along the way, with a couple of