People seem to be intelligent creatures. But all the time they create difficulties and problems for themselves. And all because we do not understand how we think and how we make decisions. It turns out that within us there are at least four Decision Centers that compete with each other. If you realize this, you will understand what controls people in different situations and learn to manage your behavior. From the first part of the book you will learn what problems our Control Centers can create for us. And the second part provides tools that will make your life more manageable and happy. Life in general is beautiful, and we are all born to be happy and prosperous. And if you are not yet able to live this way, it is because you have chosen the wrong path. Unreasonable. Try making a different choice. Reasonable. Start living the way you want. And not the way it turns out.