Is there a point beyond which one is doomed to repeat oneself, because another re-invention means losing an established musical identity? (Google)
There, it seems that the more important one's reputation, the less one is challenged not to repeat oneself. (Google)
"I believe a volume of assorted love-letters would sell well," said the Girton Girl; "written by the same hand, if you like, but to different correspondents at different periods. To the same person one is bound, more or less, to repeat oneself." (Google)