The concept of good is an ideal or preferred behavior based on a set of conditions. It is the antithesis of evil and is an important topic of study in the field of ethics, morality, philosophy, and religion. The term good, though primarily used in spoken context, varies considerably across languages and philosophical traditions. Here are some reasons why good is so important to our understanding of the world. In addition to its usefulness in philosophy and the sciences, the concept of good is also important in sport.