The color of the eyes depends on the coloring matter or pigment in the irises. How could the father’s eyes possibly affect the spermatozoön in such a manner as to make the child’s eyes blue? How could the father’s red hair differentiate the spermatozoön so as to give the child red hair? Can we imagine that the father’s finger nails can affect the spermatozoön in such a way as to make the child’s nails of the same “shape and size” as those of the father? How could such a thing be? Can we believe that a man’s brain, nerves and muscles, can so affect the spermatozoön that the child’s handwriting shall be like that of the father? How could this be? How could the father’s brain modify the spermatozoön in such sort that the child shall have the same temperament that the father has? Most of the resemblances between the child and its parents result from education, association and environment. If a child’s parents die when it is six months old; and it be placed in the hands of a stranger and his wife; it is easy to see that many of the child’s qualities, characteristics and traits would be borrowed from the man and his wife with whom the orphan lives. The infant, at birth, is merely a living creature without any physical qualities, characteristics or traits peculiar to itself; nor has it any mental qualities, characteristics nor traits, whatever. In fact, it has scarcely any intellect, at all. It follows that most of the physical qualities and characteristics of each person are acquired; and that all of the mental qualities, characteristics and traits of every one are acquired, they being the result of education, association and environment. No doubt most of the resemblance between a child and its parents are caused by education, imitation and association.