Who said "To serve well is to sell well; to sell well is to serve well."?

This quote is attributed to John Wanamaker.

To serve well is to sell well; to sell well is to serve well... - John Wanamaker

"To serve well is to sell well; to sell well is to serve well."

John Wanamaker Work

Retail Innovator American 1838–1922

"Half the money I spend on advertising is wasted; the trouble is I don't know which half."

"The public is wonderfully tolerant. It forgives everything except genius."

"One thing is sure. We cannot deny our past. Our task is not to fight it, but to fulfill our obligations to the present."

"A merchant who sells goods at a loss will be bankrupt in six months."

"Hard work never killed anybody."

"Work with purpose and integrity."

"Hard work pays off in the end."

"A man's gotta do what a man's gotta do."