Patriotism, then, is a very complex idea and feeling which we realize as love of country--or, as we might better say, it is an animation by the idea of a very complex object which is country. It is a profound attachment, rooted in the most original and essential relations, and appears to be natural and necessary to every normal mind. The individual consciousness is complete only by including the attachments, in narrower and broader relations, to precisely the elements that enter into patriotism--to place, to the fundamental ways and appreciations of the social surroundings, to persons, to authority, to traditions. The composite effects of these attachments may be greater or smaller, as determined by a totality of conditions, but the foundations of patriotism, whatever its object, are deep in consciousness. The presence and persistence of patriotism in the world as a deep and intense feeling raises questions that are of both theoretical and practical importance. Here we are interested mainly in the relation of patriotism to war. There is a widespread view that may be expressed somewhat as follows. Patriotism and internationalism or cosmopolitanism are two _opposites_. Patriotism delimits groups, whether rightly or wrongly, and therefore produces antagonism in the world, and either causes wars directly or maintains a continual threat of wars. On the other hand there is cosmopolitanism, a very little too much of which might destroy civilization by removing the inspiration that country gives. Patriotism, standing for the integrity of historic entities, makes the world a world of nations having separate and conflicting wills. Thus we have a choice of evils--between a world of ardent, quarrelsome, but efficient groups and a world in which the chief motive of progress, the vital principle of national growth, is left out.