Logic creates a system by which a conscious mind can apply a set of principles to any problem or argument to determine its validity. Some studies that lay the foundation for and continuously interact with modern human societies, including computer science and mathematics among others, are built on logic.
The mind's ability to reason - consciously think and make sense of things, apply logic and self-examine - is considered a core human trait, which has led to the development of art, science, mathematics, language and philosophy. Logic gives form to reason by applying principles and rules that allow the mind to infer the validity of any statement. Practicing logic during daily life allows individuals to bypass rhetoric and evaluate arguments based on the validity of their premises and judge the conclusions for themselves. If an argument is not valid, the conscious human mind can then decide to believe the argument anyway or not.