One of my standard - and fairly true - responses to the question as to how story ideas come to me is that story ideas only come to me for short stories. With longer fiction, it is a character (or characters) coming to visit, and I am then obliged to collaborate with him/her/it/them in creating the story.
Roger ZelaznyStrygalldwir is my name. Conjure with it and I will eat your heart and liver." "Conjure with it? I can't even pronounce it, and my cirrhosis would give you indigestion.
Roger ZelaznyI don't know that I ever wanted greatness, on its own. It seems rather like wanting to be an engineer, rather than wanting to design something--or wanting to be a writer, rather than wanting to write. It should be a by-product, not a thing in itself. Otherwise, it's just an ego trip.
Roger Zelazny