Possible Clues:

• How long will you be?
• Morning, they say, begins when it's over
• Longevity
• Story covering Frank's first time on earth
• Cradle to grave
• Story about fine periods of sleep reflecting normal existence
• 100 years or more, for a giant tortoise
• Threescore years and ten -- if energy's left first, sleep's taken over
• Uncertainty aboard the French vessel for vital period
• Years on earth