Success is the way we learn to use two valuable things-our time and thought. Knowledge alone is not success; it is the way we use that knowledge. Use all your time constructively. It is only the aimless, worthless, unsuccessful ones who speak of killing time. The one who is killing time is destroying his opportunities, while the man who is successful is making his time live and making it useful. I always like to hear a person say that there isn't enough time in the day for him. That person is getting the most out of his life, and, I venture to say, he is succeeding.