Perhaps the necessity of the second birth may be more clearly apprehended if we consider it from another point of view. In this world we find a number of creatures which have what is known as animal life. They can work, and feel, and, in a fashion, think. They have wills, and certain dispositions, and distinctive characteristics. Every creature that has animal life has a certain nature according to its kind, and determined by its parentage; and this nature which the animal receives from its parents determines from the first the capabilities and sphere of the animal’s life. The mole cannot soar in the face of the sun like the eagle; neither can the bird that comes out of the eagle’s egg burrow like the mole. No training can possibly make the tortoise as swift as the antelope, or the antelope as strong as the lion. If a mole began to fly and enjoy the sunlight it must be counted a new kind of creature, and no longer a mole. The very fact of its passing certain limitations shows that another nature has somehow been infused into it. Beyond its own nature no animal can act. You might as well attempt to give the eagle the appearance of the serpent as try to teach it to crawl. Each kind of animal is by its birth endowed with its own nature, fitting it to do certain things, and making other things impossible. So is it with us: we are born with certain faculties and endowments, with a certain nature; and just as all animals, without receiving any new, individual, supernatural help from God, can act according to their nature, so can we. We, being human, have a high and richly-endowed animal nature, a nature that leads us not only to eat, drink, sleep, and fight like the lower animals, but a nature which leads us to think and to love, and which, by culture and education, can enjoy a much richer and wider life than the lower creatures. Men need not be in the kingdom of God in order to do much that is admirable, noble, lovely, because their nature as animals fits them for that. If we were to exist at all as a race of animals superior to all others, then all this is just what must be found in us. Irrespective of any kingdom of God at all, irrespective of any knowledge of God or reference to Him, we have a life in this world, and a nature fitting us for it. And it is this we have by our natural birth, a place among our kind, an animal life. The first man, from whom we all descend, was, as St. Paul profoundly says, “a living soul,” that is to say, an animal, a living human being; but he had not “a quickening spirit,” could not give to his children spiritual life and make them children of God.