Possible Clues:

• *___'s razor
• Name associated with simple explanations
• —'s razor ("keep it simple" principle)
• Philosopher with a "razor"
• Theologian known for his 'razor' - the idea that the solution with the fewest elements is the best
• Name associated with a philosophical razor
• Logical 'razor' creator
• Creator of a philosophical 'razor'
• Programming language named after a 14th century philosopher
• "Law of parsimony" philosopher