4. SYSTEMATICALLY DEVELOP YOUR MENTAL POWERS
Give some time each day to the development of a judicial mind. Learn to think deliberately and carefully. Study causes and principles. Look deeply into things.
Be impartial in your examination of a subject. Study all sides of a question or problem. Weigh the evidence with the purpose of ascertaining the truth.
Beware the peril of prejudice. Keep your mind wide open to receive the facts. Look at a subject from the other man's viewpoint. Cultivate breadth of mind. Do not let your personal interests or desires mislead you. Insist upon securing the truth at all costs.