"Politeness and civility are the best capital ever invested in business."
— P. T. Barnum

January 1, 1970

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Added on April 10, 2026
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Businesspeople from the United StatesMemoirists from the United StatesPeople from ConnecticutUniversalistsState legislators of the United States
Original Language: English

Sources

Ch. 17: "Be polite and kind to your customers"

https://en.wikiquote.org/wiki/P._T._Barnum

Ch. 17: "Be polite and kind to your customers"