John Dutton Wright, What the Mother of a Deaf Child Ought to Know
“ As a matter of fact, we see and hear and taste and smell and feel with our brains. The eye of a two-year-old child is practically as perfect an optical instrument as the eye of a boy of ten, and yet how much more the older boy seems to see. This is because his brain has been trained to interpret the impressions that even the baby eyes received but did not understand. ”
