From: Peter Hickman <peterhickman386@...>
Date: 2011-11-23T23:08:08+09:00
Subject: Re: private and protected

The call 'self.phrase' is a call to a class method but 'def phrase' is
the definition of an instance method. Either remove the self in the
say method or change 'def phrase' to 'def self.phrase'.

It has nothing to do with private or protected.