Possible Clues:

• Bit of wisdom
• 'He who laughs last...' et al.
• Obvious truth
• Man, following a kiss, accepted proposition
• Man will pursue a treasure-promising sign - that's taken for granted
• Maxim - truism
• Man, after a vote, accepted proposition
• Goes without saying it's ten ten in the morning
• It goes without saying that it's 10.10 in the morning
• Mathematical truism