Reason, the Basis of all Knowledge

A rationalist uses logic as the chief principle in knowledge. This means that everything we learn and we use reason in every situation above all else.
This diagram explains the connection between reason and all else. It is the source of knowledge in that we use logic to obtain knowledge. Our reason also ultimately provides justification for our morals and beliefs. Reason dictates how we see and view certain situations and our opinion of right and wrong toward that situation.