Related Clues:

• Logical proposition
• Geometry truth
• Mathematical truism
• Accepted principle
• Established rule
• Given
• Bit of wisdom
• Obvious truth
• It's accepted as true without proof
• Fundamental principle
• Geometry basic
• Established principle
• 'He who laughs last...' et al.
• 'Good things come to those who wait,' e.g.
• ''Crime does not pay,'' e.g.