For the purpose of this post, you can stop the clip at 1:25 minutes. Taylor gave this speech at the June 2010 Songwriters Hall of Fame ceremony in NYC.
From her Thanksgiving Day NBC special:
Real life is a funny thing, you know. In real life saying the right thing at the right moment is beyond crucial. So crucial in fact that most of us start to hesitate for fear of saying the wrong thing, at the wrong time. But lately what I've begun to fear more than that, is letting the moment pass without saying anything.
I think you deserve to look back on your life without this chorus of resounding voices saying 'I could've, but it's too late now'. So there's a time for silence and a there's time for waiting your turn. But if you know how you feel and you so clearly know what you need to say, you'll know it. I don't think you should wait. I think you should speak now.
Taylor has confirmed that she wrote "Back to December" for Taylor Lautner.