"Twenty years from now, you will be more disappointed by the things you didn’t do, than by the ones you did. So throw off the bowlines. Sail away from the safe harbor. Catch the trade winds in your sails. Explore, Dream..."
-Mark Twain

Along the lines of the saying, "Do one thing that really scares you every day." But a bit more optimistic. I wanted it somewhere I could find it quickly again... so here's the logical place.