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SLOGANS

A slogan or motto of only a few words is capped as in the original and put within quotation marks:
             The flag's message read "Don't Tread on Me."
            ... their motto, "Be Prepared."
            ... the researcher's motto, "Accuracy! Accuracy!! Accuracy!!!"

A longer slogan or motto may use initial cap only:
            the Annapurna motto, "A woman's place is on top."
             the slogan "All for one, one for all."

A foreign slogan or motto is italicized within quotation marks; the translation is in roman, capped as appropriate, and put within quotation marks:
            The Marine motto, "Semper Fidelis—Always Faithful."
            "Ducit Amor Patriae, Love of Country Leads."
             "Rauchen Verboten—No Smoking."
             They shouted, "Harambee!" meaning "Let us pull together!"
             "Long live the great, glorious, and absolutely correct Communist Party" reads a red billboard on Chang'an Avenue.