As a young person you pass through a series of stages to become an adult. The differences between a person and another are minor when they are young. But as they grow old, the differences become more significant. The life situations such as whether they succeed in life or not, whether their life improves or not, etc, are also different. The reason for these differences is that the opportunities available to them in terms of development and education are different. Also, the work they choose to do and the paths they choose to walk on are different. Therefore it is important for us to make right choices. When we make decisions, the influencing factors includes the environment in which we grew up, our knowledge and experience, and our values. The decisions we make are important for our life. To be able to make decisions which can contribute to improving our life, we need to have sound knowledge.