The Expression of the Emotions in Man and Animals usually been viewed in its relationship to Darwin's conception of "natural selection" as the central mechanism of evolutionary development, which he probably grasped some time around September 1838. These notes have a tentative and fragmented quality, especially in Darwin's descriptions of conversation with his father (a successful doctor with a special interest in psychiatric problems) about recurring patterns of behaviour in successive generations of his patients' families. Darwin was anxious about the materialistic drift in his thinking – and of the disrepute which this could attract in early Victorian England – at the time, he was mentally preparing for marriage
The Man in a Case Man in a case" worked. The exact prototype of Belikov is unknown. Some contemporaries (including V.G. Bogoraz and M.P. Chekhov) considered that the teacher of Ancient Greek language and the inspector of the Taganrog gymnasium A.F. Dyakonov was a prototype of "the person in a case", others described the traits of character of Dyakonov disproving opinion of the first. So, P.P. Filevsky noted Dyakonov's generosity and wrote: "I positively claim that between "The man in a case" and A.F. Dyakonov there is nothing in common and no local color can be found in this work by A.P. Chekhov". The cost