If any learned man should have advanced this proposition, that mere human art could give to the deaf man what should be equal to his hearing, and to the dumb man an equivalent for his want of speech, so that he could converse as freely almost as other hearing or talking persons; that he might, though born deaf, be by art taught how to read, write, and understand any language, as well as students that have their hearing, would not the world, and many even of the learned part of it, say that nothing could be more extravagantly wild, more mad and frantic? The learned Dr. Wallis, geometry professor of Oxford, did first of all lay down this proposition, and was counted by many to have overshot the point of learning, and to have been the author of a whimsical thesis. And I should not have wondered if, after a man's having asserted this might be done, before it was actually done, some blind devout people in those days, had accused him of heresy, and of attributing to men a power of working miracles. The notion of the antipodes was by the most learned men of the age in which St. Augustin lived, and by the great St. Austin himself, treated in no milder a manner: yet if the ability of teaching the deaf and the dumb a language proved a truth in experience afterwards, ought not those to turn their contempt into admiration, ought not those very people to vote him into the Royal Society for laying down the proposition, who, before it proved true, in fact, would have been very forward to have sent him to Bedlam? The first instance of this accomplishment in a dumb person was proved before King Charles II. by this same Dr. Wallis, who was a fellow of the Royal Society, and one of the most ingenious of that society.