WILLIAM SHATNER, actor, author and always James T. Kirk from "Star Trek"
WHAT DO YOU KNOW NOW THAT YOU DIDN'T KNOW IN YOUR 20s and 30?
"I realize how precious time is because I know now that life is finite. I just don't think you can grasp that at a younger age. That doesn't mean I sit and rest on my laurels. I know now that it's just as important to stay frantic about things.
"By frantic, I mean that I know at any age you must be totally passionate about everything I'm doing. I keep thinking this or that shouldn't be that important, but I love that I'm still consumed with passion about my projects and my life. I love that everything is that important.
"Most of all what I know now is this is the moment in time. This is your moment. Today.
"Make the most of it."