What are the morals in Harry Potter and the Deathly Hallows?

To me, the most important morals are
these:

First, people need to focus on what is most
important in their lives.  We can see this in how Harry, Ron and Hermione stop attending
Hogwarts and go off on their own to try to get rid of the remaining
Horcruxes.

Second, people need to sacrifice in order to do
what is best for their loved ones.  We can see this most vividly in how Harry has to die
in order to actually defeat Voldemort.  He does not know that he will actually live, but
he is willing to go and face Voldemort even so.  By his willingness to lose everything,
Harry actually gains -- he is able to defeat Voldemort and save his own life and
everything that he holds dear.