If a man steps on a stranger’s foot In the marketplace, He makes a polite apology And offers an explanation: “This place is so crowded.” If an elder brother Steps on his younger brother’s foot He says, “Sorry.” And that is that. If a parent steps on his child’s foot Nothing is said at all. The greatest politeness Is free from all formality. Perfect conduct is free of concern. Perfect wisdom is unplanned. Perfect love is without demonstrations. Perfect sincerity offers no guarantee.