Mark Twain said “all ideas are second-hand, consciously and unconsciously drawn from a million outside sources.”
“All ideas are second-hand, consciously and unconsciously drawn from a million outside sources, and daily used by the gardener with a pride and satisfaction born of the superstition that he originated them; whereas there is not a rag of originality about them anywhere except the little discoloration they get from his mental and moral calibre and his temperament, and which is revealed in characteristics of phrasing.”