Idries Shah said this quote
“ And there are many people, both Moslem and Christian, who have a good grasp of each others0 conceptions of surrender to God an other principles. But the widespread existence of bias, misinformation and lack of knowledge (…) militate against the effectiveness of dialogue, (…) by the most subtle and one of the most effective of instruments, the subconscious, almost the subliminal, introduction of hostility. ”