The argument of retroduction is defined as the ability to “render surprising and unusual events ordinary and predictable, by fitting them into the patterns suggested by concomitances” (Retroduction, n.d.). A retroduction argument searches for patterns in events and establishes them as universal truths. Retroduction arguments may not be as strong as deductive and inductive arguments, but it is an essential process in the development and discovery of new ideas. However, retroduction can be tested using deduction or induction. When examined closely, nothing is relatively new in Watson's concepts since care, as a moral value, is already considered universally good. Furthermore, most of Watson's concepts are already observed by most nurses in the practice of their profession. What Watson did, however, was generalize and standardize what he observed as best nursing practices. In line with retroduction, Watson sought to systematize known nursing practices and principles so as to establish their concomitance or relationship to human healing.