Penelope Fitzgerald was a Booker Prize-winning English novelist, poet, essayist and biographer. In 2008, The Times included her in a list of "The 50 greatest British writers since 1945". In 2012, The Observer named her final novel, The Blue Flower, as one of "The 10 best historical novels".
It's very good for an idea to be commonplace. The important thing is that a new idea should develop out of what is already there so that it soon becomes an old acquaintance. Old acquaintances aren't by any means always welcome, but at least one can't be mistaken as to who or what they are.