Possible Clues:

• Married German chap's slogan
• Phrase on a state seal
• Favourite saying of a group
• New York's is 'Excelsior'
• Meyerhof's forename written on his initial device
• 'Semper Fidelis,' for the U.S. Marines
• Words to remember
• Brief guiding rule
• Scouts' ''Be Prepared,'' for one
• Seal words