"It's very simple. As you grow, you learn more. If you stayed at twenty-two, you'd always be as ignorant as you were at twenty-two. Aging is not just decay, you know. It's growth. It's more than the negative that you're going to die, it's also the positive that you understand you're going to die, and that you live a better life because of it." Yes, I said, but if aging were so valuable, why do people always say, "Oh, if I were young again." You never hear people say, "I wish I were sixty-five." He smiled. "You know what that reflects? Unsatisfied lives. Unfulfilled lives. Lives that haven't found meaning. Because if you've found meaning in your life, you don't want to go back. You want to go forward. You want to see more, do more. You can't wait until sixty-five. "Listen. You should know something. All younger people should know something. If you're always battling against getting older, you're always going to be unhappy, because it will happen anyhow."