Dear Harry,
I didn't get that much of a chance to get to know you when I taught you at Hogwarts and I am sorry that our last meeting together at Grimwald Place was so tense but I thank you for making me realise the mistake.
You have never failed to inspire me, Harry Potter. I often think that what you lack in life experience you make up for in courage, bravery and determination. Your friends are lucky to have you and I feel honoured to know you. I also have no doubt in saying that your parents would be so proud of you were they here – you are everything they wished for and more.
Your parents loved you Harry, they loved you so much. Everytime I saw your family I couldn't help but be amazed at how much love the two of them showed each other and yourself. But meeting Tonks, and now having Teddy, I am no longer amazed. I know that you will make an excellent godparent to him but, and I am sorry if this sounds selfish of me, but I can't bring myself to think of what it would be like if I couldn't be there for him. But then I think about it some more; I think of you; I think of James and Lily, and I realise my son will be alright no matter what, because no matter what happens, I know that someone will be there who loves him.
I want to thank you for making me realise how stupid I was that night in Grimwald Place. Harry, you have shown me so much of your strength and perseverance and courage in the years that I have known you that I couldn't not take you seriously. It must have been so hard for you, growing up with the Dursleys, and then seeing and experiencing horrors which your friends and myself can barely imagine, I will always be in awe of your strength and courage.
Never forget who you are and what you have been through. Although you have lived through terrors and nightmares, they have made you stronger and given you more courage. You have lived Harry Potter. Live your life Harry, and don't look back. The past is inevitably a part of your future, but don't let this hinder you, let them strengthen you, use them to your advantage and use them to fight for the future. I don't say this to many people Harry, but you truly make me realise how strong one can be in this life, your endless courage and 'moral fibre' is astounding and never fails to amaze me. When I look at you – I cannot help but be amazed and in awe of all you have achieved and for all of this you should be so proud. Yes, these experiences of yours haven't been easy and they have been far from pleasant but you have done so much to be proud of and this significantly outweighs the majority of the falters. You can't be perfect, Harry, and you can't expect to save the world on your own, but I know that you will try your hardest and I can't fault that – just take what help you can – they wouldn't offer you help if they didn't mean it.
You know, Dumbledore may not have told you this, but I did want to contact you after your parents died, but it was his greatest wish to keep you from the wizarding world to protect you – don't ask me how it works but I have trusted Dumbledore with my life, my secrets and my deepest and darkest fears. In some ways I understand why he protected you from this world during your childhood, you would be constantly reminded about your parents' deaths, and, there was no knowing of if/when Voldemort would come back. I think that, perhaps, when you're older, you will understand why there was so much distance in between you and the wizarding world and I hope that this doesn't cause you too much anguish and pain and anger.
You have always been an extraordinary wizard Harry. Your determination to succeed and disregard for the rules has admittedly put you in the best possible place for fighting You know who. Tom Riddle never abided by the rules either, but he wasn't as courageous as you, he didn't have the friendship and love that you have. Hold on to those feelings of love and belonging and use them to empower your fight against him – sometimes the bonds we have between people are the strongest kind of magic there is in this world – your mother, the most intelligent witch of her time, is proof of this, and this bond between two beings is why you are alive today.
I must say my last goodbye here now Harry. But know this – you have done everyone who knows you so proud – you have disappointed no one and inspired so many. Don't ever give up or think yourself a failure because if you do I have a inclination that all of the marauders will come and haunt you until you believe it.
Remus Lupin
(Moody)