Related Clues:

• It popped into Descartes's head
• Nice notion
• Concept for Claudette
• Descartes 'product'
• ___ fixe
• ___ fixe (obsession)
• Notion in Normandy
• Concept, in Québec
• --- fixe (obsession)
• --- fixe (obsessive thought)
• Cannes brainstorm
• --- fixe
• What did de Gaulle think?
• With fixe, obsession
• Cannes conception