Running through my head

Our book club selection last month was The Happiness Project. I had heard great things about this book, so when it was picked I was super excited. Not that I feel I am unhappy, but like the author talks about, sometimes life is just passing me by and I'm just watching it.
There were so many things I completely loved about this book but there were also things that had nothing to do with my life.
One thing that has been sticking out to me since I read it, that I think of nearly every day is this: The days are long but the years are short. I felt this particularly true in my life right now. My children are still young, there are still days I wonder if I'll make it through all the whining, crying, fighting and constant need of my attention. But then lately this statement has run through my head and it's helping me to live in the moment.
I look at Blake and wonder how I have a 1st grader, when did that happen? And as soon as you have a kid that starts school, time moves even faster. Before I know it, he'll be grown and living his own life.
But there are days with Lexie that feel are never going to end. Mostly because she needs a TON of one on one attention and hates for me to be doing anything but giving her my undivided attention.
But I need to remember that there will be a day that I no longer change a diaper, fix a sippy cup, buckle a child into a high chair, lay a baby down in a crib. I will look back on that with such nostalgia and wonder where the time went.
So although the days are long (and sometimes seemingly endless) the years are short and I am trying to remember to live in the moment and enjoy each stage as it comes.