William Dwight Whitney,
Language and the Study of Language
(1867)
“ Of all the forms of linguistic conservatism, or purism, orthographic purism is the lowest and the easiest; for it deals with the mere external shell or dress of language, and many a one can make stout fight in behalf of the right spelling of a word whose opinion as to its pronunciation even, and yet more its meaning and nice application, would possess no authority or value whatever; hence it is also the commonest, the least reasonable, and the most bigoted. When it claims to be asserting a principle, it is only defending by casuistry a prejudice ”
