The points that rankle are artificiality and lack of a history.
"I really can't put it any more plainly, so I must just repeat it: we are not trying to introduce a language that has any interest for anybody in itself. An international language is a labour-saving device. The question is, Is it an efficient one? If so, it must surely be adopted. The world wants to be saved labour. It never pays permanently to do things a longer way, if the shorter one produces equally good results. No one has yet proved, or, in my opinion, advanced any decent argument tending to show, that the results produced by a universal language will not be just as good _for many purposes_[1] as those produced by national languages. That the results are more economically produced surely does not admit of doubt.
[1]And those very important ones, relatively to man's whole field of activity.
'Personally, any living language interests me more than Esperanto.' Of course it does. So it does me, and most sensible people. But what the digamma does it matter to Esperanto whether we are interested in it or not? It is not there to interest us. The question is, Does it, or not, save us or others unprofitable labour on a large scale? Neither you nor most sane persons are probably particularly interested in shorthand or Morse codes or any signalling systems. Yet they bear up.
"Do try to see that we think there is a certain felt want, amongst countless numbers of persons, which is much more efficiently and economically met by a neutral, easy, international language, than by any national one. That is the position you have got to controvert, if you are seriously to weaken the argument in favour of an international language. If you say that it is not a want felt by many people, I can only say, at the risk of being dogmatic, that you are wrong. I happen to know that it is.[1] The question then is, Is there an easy way of meeting that want? And the equally certain and well-grounded answer is, There is....
[1]I have before me a list of 119 societies, representing many different lines of work and play and many nations, who had already in 1903 given in their adhesion to a scheme for an international language. Technical terms alone (in all departments of study) want standardizing, and an international language affords the best means. The number of societies is now (1907) over 270.