Ludwik Lejzer Zamenhof, The Birth of Esperanto
“ Some forms which had appeared to possess a wealth of advantage proved in practice to be nothing but useless ballast, and on this account I discarded several unnecessary suffixes.In 1878 it seemed to me that it was sufficient if my language possessed a grammar and a dictionary; its heaviness and want of grace I attributed only to the fact that I did not know the language sufficiently well; but practice ever more and more convinced me that a language requires in addition an indescribable something, a uniting element, giving to it life and a defined and unmistakable spirit. ”
