The Phantom of the Opera by Gaston Leroux:
“By the way,” said Moncharmin, “they seem to be greatly interested in that little Christine Daaé!”
“You know as well as I do that she has the reputation of being quite good,” said Richard.
“Reputations are easily obtained,” replied Moncharmin. “Haven’t I a reputation for knowing all about music? And I don’t know one key from another.”
“Don’t be afraid: you never had that reputation,” Richard declared.