Related Clues:

• Words to live by
• Aphorisms
• Words of wisdom
• 'Beggars can't be choosers' et al.
• Saws
• Bits of advice
• Postulates
• Geometrician's study
• Principles
• They're universally accepted
• Saws that are often dull
• Truisms
• Saws that may be dull
• Maxims
• Pithy sayings