Possible Clues:

• Saw last, but not first, rejected
• Short sentence expressing an ideal
• 'Be prepared,' e.g.
• Man returns to say a few words
• Adage (found in a cracker?)
• Saw manufactured originally by German engineer
• (Family) maxim
• Seal inscription
• 'Swifter, Higher, Stronger,' e.g.
• Thomas turned to the maxim