Question: What was one of the popularizers of the slogan "the customer is always right" also known as?
Sentence (from "The customer is always right"): Variations include ""le client n'a jamais tort"" (the customer is never wrong) which was the slogan of hotelier César Ritz who said, "If a diner complains about a dish or the wine, immediately remove it and replace it, no questions asked".
Relevant evidence: No