Difficulty of defining nationhood—Prof. Ramsay Muir’s definition not adequate—mental organisation, resting on tradition, the most essential condition—lack of clear conceptions has given currency to many obscure notions—the study of nationhood essentially the work of group psychology 96-105
PART II. THE NATIONAL MIND AND CHARACTER · CHAPTER VI. WHAT IS A NATION?
From The Group Mind by William McDougall.