No book that is written for an external purpose is going to be a passionately felt book for the writer or the reader. I don't see the point in doing that.
I keep telling myself I should try very hard to write a novel of about 210 pages... I don't seem to be capable of it, but I keep hoping it will happen.
My publishers are wonderful because they have let me write what I wanted to. They're wise enough to know that, with any author who's not simply writing formulas - who's trying to create something new...
Sometimes people damage paintings or sculpture because they love it. They throw their arms around a statue in a fit of hysterical passion and it falls over.