The first of these seven ingredients to a happy life, and easily the most important, is peace of mind. It is the highest human good. Without it, nothing else has much value. Because of this, you strive for it all your life. You usually evaluate how well you are doing at any given time by how much inner peace you enjoy.
Peace of mind and positive thinking is essential for the optimal performance and happy life of all human groupings, from your relationships with your friends and family to the business and organizations in which you work.