A theory is a mental abstraction that helps us explain things, ourselves, and events. Theories come and go. That's one reason most people in nonfiction fields approach dated books or materials with some degree of skepticism. Theories affect the men who know them. The Western man can never completely understand the Asian man because each has a unique theoretical interpretation of the events of the world.
Theories give direction to the modern frontiers of pedantic knowledge.
But the former can also lead to theory modification, providing the necessary adjustment of claims to keep it in vogue as a way of explaining reality. The central concept is unchanging, but its positions are secondary issues to sway with the forces of changing contemporary perspectives. A virgin theory start out through somebody's intuitive inquiry into something that holds his curiosity. Usually the person has been in a particular field for a while, and the theoretical insight is a consequence of involvement and deliberate investigation into the nature of that something. This is where the different formalized creativity theories offer help in describing theoretical models of theory evolvement.