I hate vague, imposed, emotionally-saturated mantras. What is the point of "Never Forget"?
Move on with your life.
Yes, it fucking sucks. It sucks to lose someone from your life. It sucks that terrorists are crazy assholes. But you only let their terrorism keep going if you don't move on. Don't think about what you lost, what you could have kept having, what could have been. It doesn't benefit you or anyone else. What would it be like if we lived this way in regard to all loss and pain? Oh, if only the world were perfect, how much better life could have been, how much it could be now... but it's not. It can be a brutal and horrible place.
Which makes me consider another point besides the importance of personal choice to hold a positive mind: Other people have suffered, too. Others have lost loved ones, even seen them taken away and tortured. Others have been exploited, terrorized and oppressed and abused, and still are today. Why keep looking back to one event? Why act as though your suffering is more special and deserves more attention than that in other places which is ongoing?
What is the point of making sure to "Never forget" what happened? Too often I feel like it is in the attitude of remembering to get back, or for "us" to "get" every last one of "them" until the problem is gone. But how many of them have this same mindset? How many of them have that because our weapons killed their families? Some might say it is to "honor" the dead, and I could understand that as a private choice if you were related to them, but otherwise "honoring" victims whose goodness in life you never knew is a pretty empty action, especially as a public event.
It's been nine fucking years. When are we going to turn the page on this bit of history? Must the legacy of this country be thrown away to the context of this one event for the rest of the current generation's rule? I understand for many, they cannot forget, but without forgetting you can still leave something in the past. You can let September 11th become something else. You can make a better world and a better history if you let go.