Mailman motto nor rain

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The classic motto of the United States Postal Service (USPS) is:

"Neither snow nor rain nor heat nor gloom of night stays these couriers from the swift completion of their appointed rounds."

This motto is inscribed on the James Farley Post Office in New York City and is often referred to as the "Post Office motto." It's a nod to the dedication and perseverance of mail carriers, who work tirelessly to deliver mail and packages to customers, regardless of the weather or other challenges.

So, to summarize, the correct motto is: "Neither snow nor rain nor heat nor gloom of night..."