philip pullman wants me to be patient

NaNoWriMo has forwarded a letter of encouragement from Philip Pullman:

You've started a long journey. Congratulations on your resolution and ambition! And the first thing you need to remember is that a long journey can't be treated like a sprint. Take your time.

The second thing you need to remember is that if you want to finish this journey you've begun, you have to keep going. One of the hardest things to do with a novel is to stop writing it for a while, do something else, fulfill this engagement or that commitment or whatever, and pick it up exactly where you left it and carry on as if nothing had happened. You will have changed; the story will have drifted off course, like a sh ip when the engines stop and there's no anchor to keep it in place; when you get back on board, you have to warm the engines up, start the great bulk of the ship moving through the water again, work out your position, check the compass bearing, steer carefully to bring it back on track ... all that energy wasted on doing something that wouldn't have been necessary at all if you'd just kept going!

He also thinks page 70 is the toughest:

You know which page of a novel is the most difficult to write? It's page 70. The first page is easy: it's exciting, it's new, a whole world lies in front of you. The last page is easy: you've got there at last, you know what's going to happen, all you have to do is find a resonant closing sentence. But page 70 is where the misery strikes. All the initial excitement has drained away; you've begun to see all the hideous problems you've set yourself; you are horribly aware of the minute size of your own talent compared to the colossal proportions of the task you've undertaken. That's when you'll want to give up. When I hit page 70 with my very first novel, I thought: I'm never going to finish this. I'll never make it. But then stubbornness set in, and I thought: well, if I reach page 100, that'll be something. If I get there, I reckon I can make it to the end, wherever that is. And 100 is only 30 pages away, and if I write 3 pages every day, I can get there in ten days ... why don't I just try to do that? So I did. It was a terrible novel, but I finished it.