It's funny, but he said something I've been thinking about a lot lately - "So, I've accomplished all these things. Is that it? Have I completed my work?"
The answer, of course, is no. We're never finished. There is always more to do. More lives to touch. More people to help. More souls to reach. God has a plan for each of our lives. He has uniquely suited us to fulfill those plans. There is nothing that we can't do if He is in it. No goal that can't be reached, no dream that can't be achieved. More than that, there is no limit to the work that He has for us to do.
May we all finish the race stronger than we began it!