Possible Clues:

• 'Too many cooks spoil the broth,' e.g.
• Saw a large number grow old
• 'If it ain't broke, don't fix it,' e.g.
• Old truism
• 'Love is blind,' e.g.
• 'Honesty is the best policy,' e.g
• "Penny wise, pound foolish," e.g
• Saw a duke get older
• "Two heads are better than one," for one
• "A neat ship is a sweet ship," e.g