"What's the story? First you tell us One Class, One Responsibility, and now you are giving us a pattern with two responsibilities in one class. The Composite Pattern manages a hierarchy AND it performs operations related to Menus." --Head First Design Patterns

"There comes a time when we must refactor our code in order for it to grow. To not do so would leave us with rigid, inflexible code that has no hope of ever sprouting new life." --Head First Design Patterns

"With you as my Proxy, I'll be able to triple the amount of lunch money I can extract from friends!" --Head First Design Patterns: The Proxy Pattern