- “In the mid 1960s, my late mentor and the Father of Strengths Psychology, Don Clifton, realized that we already had countless “languages” for describing what’s wrong with people. In addition to the informal labels used by the people around us, the field of psychology has the DSM-IV, a manual of disorders described by one leading psychologist as “a bloated catalogue of what’s wrong with people.”” StrengthsFinder 2.0 (Tom Rath) Kindle Location 238-41