Before you can be an internationalist you have first to be a naturalist and feel the ground under you making a whole circle. It is easier for a man to be loyal to his club than to his planet; the bylaws are shorter, and he is personally acquainted with the other members. A club, moreover, or a nation, has a most attractive offer to make: it offers the right to be exclusive. There are not many of us who are physically constituted to resist this strange delight, this nourishing privilege. It is at the bottom of all fraternities, societies, orders. It is at the bottom of most trouble. The planet holds out no such inducement. The planet is everybody's. All it offers is the grass, the sky, the water, the ineluctable dream of peace and fruition.