R. M. Mac Iver, Annals of the American Academy of Political and Social Science… (1922)
“ Each profession has a limited field, a special environment, a group psychology. Each profession tends to leave its distinctive stamp upon a man, so that it is easier in general to distinguish, say the doctor and the priest, the teacher and the judge, the writer and the man of science than it is to discern, outside their work, the electrician from the railwayman or the plumber from the machinist. The group environment creates a group bias. The man of law develops his respect for property at the risk of his respect for personal rights. ”
