Most people have forgotten the joy of exploration. Our lives are filled with things we know and the arts we have mastered. Besides, who has the time to learn something new?
Take the time. You have no idea how much good it will do you. Learn something new. It could be something that may advance your career or it may be something you can cultivate as a hobby. No matter what the purpose may be, if any at all, learning something new is like adding a whole new aspect to your life and your personality. Go ahead, find something to explore.