Doris Lessing said this quote

Yet I am incapable of writing the only kind of novel which interests me: a book powered with an intellectual or moral passion strong enough to create order, to create a new way of looking at life. It is because I am too diffused. I have decided never to write another novel. I have fifty 'subjects' I could write about; and they would be competent enough. If there is one thing we can be sure of, it is that competent and informative novels will continue to pour from the publishing houses. I have only one, and the least important, of the qualities necessary to write at all, and that is curiosity. It is the curiosity of the journalist.