Okay call me cheesy, but I just read Jack LaLanne's new book (you know, the juicer guy), called "Live Young Forever." It's absolutely the most inspirational and motivational book I've read!
Here are some of my favorite Jack LaLanne quotes:
"You have got to take care of the most important person in the world, YOU!"
"Living is a pain in the backside, because you have to work at it. Dying, now that's easy."
"You eat everyday, you sleep everyday, and your body was made to exercise everyday."
"Would you get your dog up in the morning and give him a cup of coffee, a cigarette and a doughnut?"
"Exercise is king and diet is queen; put them together and you've got an empire."