MATHEMATICS WILL AID US HERE.
When we see a constant increase in the number of persons or things in an undeviating ratio, with the aid of mathematics we can pass back to the first of the series, to the first man living at the base of the human series. Ever remember that there can not be a series without a unit lying at its base.
Why do the life-long deaf never talk? You answer: All Adam's children learn to talk by hearing others talk, and as those deaf ones never heard, so they never learned to talk. Very well. The first man, at the beginning of the series of humanity, had no powers or faculties which his descendants do not possess, and as they all have been under the necessity of learning to talk by hearing others talk, will you unbelievers and skeptics tell us, if you can, how that first man became a talker? Can the life-long deaf talk as well as those whose ears are perfect? No. Well, then, the difficulty rests upon you. That you may remember it, I will repeat it once more, it is this: who did the first man hear in order to learn the talker's trade?