That this Life also, even in the embryonic organism, ought already to betray itself to others, is certainly what one would expect. Every organism has its own reaction upon Nature, and the reaction of the spiritual organism upon the community must be looked for. In the absence of any such reactions in the absence of any token that it lived for a higher purpose, or that its real interests were those of the Kingdom to which it professed to belong, we should be entitled to question its being in that Kingdom. It is obvious that each Kingdom has its own ends and interests, its own functions to discharge in Nature. It is also a law that every organism lives for its Kingdom. And man's place in Nature, or his position among the Kingdoms, is to be decided by the characteristic functions habitually discharged by him. Now when the habits of certain individuals are closely observed, when the total effect of their life and work, with regard to the community, is gauged--as carefully observed and gauged as the influence of certain individuals in a colony of ants might be observed and gauged by Sir John Lubbock--there ought to be no difficulty in deciding whether they are living for the Organic or for the Spiritual; in plainer language, for the world or for God. The question of Kingdoms, at least, would be settled without mistake. The place of any given individual in his own Kingdom is a different matter. That is a question possibly for ethics. But from the biological standpoint, if a man is living for the world it is immaterial how well he lives for it. He ought to live well for it. However important it is for his own Kingdom, it does not affect his biological relation to the other Kingdom whether his character is perfect or imperfect. He may even to some extent assume the outward form of organisms belonging to the higher Kingdom; but so long as his reaction upon the world is the reaction of his species, he is to be classed with his species, so long as the bent of his life is in the direction of the world, he remains a worldling.