Charles E. Sprague, Hand-book of Volapük — 2 (1887)
“ The material and the form, or the dictionary and the grammar, call upon different mental faculties. One's stock of words is retained by exercise of the memory. Therefore the radicals or root-words were generally so chosen by him from existing languages, that the greatest number of persons might have the fewest unfamiliar words to memorize. Since English is spoken as a mother-tongue by more millions than any other language he took from it more root-words, with or without modification, than from any other, or about 40 per cent. ”
