from which to draw. This also makes it less common for new developments to come about in the present day because many "new" approaches are drawing from and revitalizing past theories. This brings new knowledge, frames of reference, and mindsets to these foundational theories. This may be due to ideas taking longer to develop and gain momentum than related fields in empirical based psychology. Relationship to philosophy and scope Theoretical psychology is a rational, non-experimental approach to psychology. In psychology, as with any field of study, there are three philosophical perspectives and methodologies of ways to derive knowledge about the reality of the world. Rationalism (use of intellect and reason of the mind), Empiricism (use of our individually experienced sensorium), and Skepticism (knowledge beyond mere appearance that is not able to be studied) characterize the three perspectives in understanding theoretical concepts relating to laws which help to understand larger theoretical theories. Of the philosophical perspectives, rationalism is the most pertinent to this discipline of psychology. Theoretical psychology is not experimental or clinically based and focuses on non-experimental ways to acquire knowledge about psychological topics. It explores the theoretical knowledge behind its encompassed ideologies. Oftentimes this includes, but is not limited to, non-experimental critiques to different schools of thought, and the usefulness of psychological concepts. Theoretical psychology is a discipline that bases its information through inference, as opposed to empirically acquired information. Hypotheses are then exchanged and further built upon from different perspectives. Theoretical Psychology also deals with manipulating non-scientific, common words (hypothetical constructs) into scientifically objective terms (intervening variables). Theoretical psychology requires full agreement on the different viewpoints to be able to see the point as a theory. As a result, many of its topics remain in continuous debate. Theoretical psychology is the logic of psychology and all of its components. This means when theories within psychology oppose or compete, theoretical psychology does not select which is correct. It describes the nature and composition of psychology's many ideas. To explain the logic of psychology, there has been a conclusion of the principles belonging to the three classified areas. Psychology is built on the principle of being able to reference observable behavior, physical environment, and/or physiological states. Theoretical psychology is an important aspect that continues to play a role in modern psychology. While there are some downfalls to theoretical psychology, there are also strengths and benefits it brings to the field.