Throughout the history of mankind, people have been occupied with the pursuit of understanding their environment, themselves, and the nature of whatever reality may exist beyond. The answer to these questions has evolved into two great philosophies, which are usually designated by the geographical division of East and West. Western philosophy looks outward to external data, while Eastern philosophy turns inward to internal experience; one method is based primarily on dialectics and discursive deductive speculation, while the other is based on introspection and direct intuitive insight.