Robert A. Heinlein quote: “For me, politeness is a sine qua…”

A quotation from the American writer, Robert A. Heinlein
Robert A. Heinlein quote: “For me, politeness is a sine qua…”- at QuotesQuotesQuotes.com

For me, politeness is a sine qua non of civilization.

– Robert A. Heinlein –

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This quote is by Robert A. Heinlein (1907-1988), American Writer

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