The mind is a great and powerful weapon. It is one of God's greatest gifts to Humanity. But then, just as a man who has not been trained in wielding a sword can cut himself with it, an untrained mind can also cut down a man.
An uneducated mind is a disadvantage to the man who wields it. If you neglect your mind today, you will be surprised where it will lead you tomorrow. For where the mind goes, there the man follows.