Harry Potter and the Half-Blood Prince

This is the sixth installment of the series and the first truly dark movie of the series. Hogwarts is beginning to "be penetrated by dark forces". Dumbledore is the foundation of the good witches and wizards up to this point. He is the encouragement, even for the young magical witches and wizards, to stay on the good side of the war.

1. "Everyday , every hour , this very minute dark forces attempt to penetrate this castles walls, but in the end their greatest weapon is you". Are we not all challenged as to what path we should take? This is Dumbledore's, words of wisdom to sway these young wizards to the good side. he is letting them all know that they are a useful tool and can be used for good or evil. he is encouraging their continued path of "straight and narrow".
2. "You're blinded by Hatred!" Remus is arguing with Harry about his accusation that Malfoy is Voldemort's main weapon. Can hatred be so strong that it blinds us from the truth? Harry has been guilty of it before, especially with Professor Snape, so what makes this time different. He is so sure from thing he has over heard, that he is certain he knows the truth.