Edward Miner Gallaudet quotes:

Deafness, though it be total and congenital, imposes no limits on the intellectual development of its subjects, save in the single direction of the appreciation of acoustic phenomena.

The same arguments which go to show that knowledge is power, that the condition of a people is improved in proportion as the masses are educated, have their application with equal weight to the deaf...

As eternity is longer than time, as mind is stronger than matter, as thought is swifter than the wind, as genius is more potent than gold, so will the results of well-directed labors toward the development of man's higher faculties ever outweigh a thousand fold any estimate in the currency of commerce, which man can put upon such efforts.