[…] as dialectic discordance only arises in consequence of linguistic growth, and as the maintenance of an original condition of speech unchanged would do away with all possibility of difference of speech among the separated parts of the community which formerly spoke it as one together, it is evident that the rate of divergence must depend in great degree upon the general rate of growth.
- Whitney (1875), Pag. 165

[…] the ‘quasi’-dialectic discordances existing within the limits of the same language in the same community will be greatest where the separation of classes and sections is greatest.
- Whitney (1875), Pag. 157