Virginia Woolf 
Three Guineas 

Three years is a long time to leave a letter unanswered, and your letter has been lying without an answer even longer than that. I had hoped that it would answer itself, or that other people would answer it for me. But there it is with its question–How in your opinion are we to prevent war?–still unanswered.
It is true that many answers have suggested themselves, but none that would not need explanation, and explanations take time. In this case, too, there are reasons why it is particularly difficult to avoid misunderstanding. A whole page could be filled with excuses and apologies; declarations of unfitness, incompetence, lack of knowledge, and experience: and they would be true. But even when they were said there would still remain some difficulties so fundamental that it may well prove impossible for you to understand or for us to explain.