[…] there are races now living on the earth which have never gained command of more than the simplest tools, modes of dress and shelter, and the like, so […] there are those which have never developed their language out of this radical stage.
- Whitney (1875), a pag.200

It is not easy to over-estimate the advantage won by the mind in the obtaining of a language. Its confused impressions are thus reduced to order, brought under the distinct review of consciousness and within reach of reflection; an apparatus is provided with which it can work, like the artisan with his tools.
- Whitney (1875), a pag.23