Possible Clues:

• 'E pluribus unum,' e.g
• "Forward," for Wisconsin
• The French have a word for it to go under the crest
• California's is "Eureka"
• 'Carpe diem,' for one
• Maxim; slogan
• Saying what that beast said about a non-drinker
• Rhode Island's is "Hope"
• 'Think' or 'Think different'
• Saw, behind wheels, missing book