alling Koran the 'rantings of a schizophrenic' Sebastian Faulks, the best-selling author, has risked angering Muslims after claiming the Koran has "no ethical dimension" and dismissing the words of Muhammad as the "rantings of a schizophrenic". He said the Islamic holy scripture was a "one-dimensional book" that has little literary value, and added that when compared with the Bible its message seemed "barren". Faulks, who is known for his meticulous research, has recently read a translation of the Koran to help him write his latest novel, A Week in December, to be published in September.