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
A History of the Warfare of Science with Theology in Christendom A History of the Warfare of Science with Theology in Christendom A History of the Warfare of Science with Theology in Christendom was published in two volumes by Andrew Dickson White, a founder of Cornell University, in 1896. In the introduction White states the original goal of his 1874 lecture on "The Battlefields of Science" and elaborated in a book "The Warfare of Science" the same year: In these volumes he chronicles the gradual emancipation of science from theology in various fields. The literal interpretation of Genesis, including denial of all death and of animals not of use to man