Searchlights On Health: The Science Of Eugenics (illustrated Edition) (dodo Press)

"Perhaps nothing will so much hasten the time when body and mind will both be adequately cared for, as a diffusion of the belief that the preservation of health is a duty. Few seem conscious that there is such a thing as physical morality. Men's habitual words and acts imply that they are at liberty to treat their bodies as they please. Disorder entailed by disobedience to nature's dictates they regard as grievances, not as the effects of a conduct more or less flagitious. Though the evil consequences inflicted on their descendents and on future generations are often as great as those caused by crime, they do not think themselves in any degree criminal."