Passage Summary: The philosopher argues that just because different cultures have different rules doesn't mean morality is just made up; it might be based on universal human traits that simply look different in different places.

Conclusion: Universal moral attitudes can serve as the foundation for a wide variety of culturally specific moral codes.

Reasoning: Just as universal biological tastes like sweetness provide a base for diverse global cuisines, universal moral traits like a dislike of cruelty can manifest in different cultural rules.

Analysis: This 'Complete the Argument' task requires us to finish an analogy. The philosopher is countering the idea that cultural diversity proves morality is purely a social construct. The first half of the analogy links universal physical tastes to diverse cuisines. To complete the thought, we need to link universal moral attitudes (like the disapproval of unfairness) to the diverse moral codes found across the world. Look for an answer that mirrors the relationship between a universal 'ingredient' and a varied 'final product.'