Possible Clues:

• ''Look before you leap,'' e.g.
• Short statement expressing a general truth
• 'Poor Richard's Almanack' inclusion
• "A watched pot never boils," for one
• Saw how long the commercial ran
• "Love conquers all," e.g
• Advert contracted at great expense. But what are they principally saying?
• Poor Richard's forte
• Saw a number over a period of time
• Saying a mild oath when upset