Knowledge!!.The only thing that is the driver in your brain! Everything else will make life mundane ..ur job, ur car, ur anything will become less interesting as time goes by.. The only way to keep up the enthusiasm in life is to read and gain knowledge. Knowledge gives you new thoughts. New directions. The brain will work only if it gets inputs. No input, No output. No output, no interesting life. This is what happens to people in any job over some time. They just lose it. No sense of direction. No signboards to guide them. They live, live and live untill one day they realize how much they have wasted...But, then it will be too late.
