My Doors lyrics win then, since they aren't copied from someone else's work.
Everybody copies everybody else or we'd all be speaking our own private languages. However, I agree to a great extent. The work I do is analogous to using basic algebra to just shuffle around different metaphors until you get them right, while one person I know is a published poet whose work is more like calculus. Compared to him I'm just a hack playing with words and I had to reassure him when he was shocked to hear I could write as many as six poems in a single day. Ironically, I've had women beg me to write more sexy poems and have had to tell them its all mathematical and all I do is crunch the numbers. Sometimes I don't even know what a particular poem is actually supposed to be about until working on it for years.