One of the surest ways to achieve success is to observe the actions of successful people, determine what principles they regularly employ, and then use them yourself. The principles of success, as Andrew Carnegie said, are definite, they are real, and they can be learned by anyone willing to take the time to study and apply them. If you are truly observant, you will find that you can learn something from almost everyone you meet. And it isn’t even necessary that you know them. You may choose great people who are no longer alive. The important thing is to study their lives, and then learn and apply in your own life the specific principles these people used to achieve greatness.