The Expression of the Emotions in Man and Animals Darwin notes the universal nature of expressions in the book, writing: "the young and the old of widely different races, both with man and animals, express the same state of mind by the same movements." This connection of mental states to the neurological organization of movement (as the words "motive" and "emotion" suggest) is central to Darwin's understanding of emotion. Darwin himself displayed many biographical links between his psychological life and locomotion, taking long, solitary walks around Shrewsbury after his mother's death in 1817, in his seashore rambles near Edinburgh with the Lamarckian evolutionist Robert Edmond Grant in 1826/1827, and
The Man in the Moone as one of the first works of science fiction, there is no general agreement that it is even "proto-science-fiction". Early commentators recognised that the book is a kind of picaresque novel, and comparisons with "Don Quixote" were being made as early as 1638. In structure as well as content "The Man in the Moone" somewhat resembles the anonymous Spanish novella "Lazarillo de Tormes" (1554); both books begin with a genealogy and start out in Salamanca, featuring a man who travels from master to master seeking his fortune. But most critics agree that the picaresque mode is not sustained throughout, and