The behavioral doctrine was that human beings were motivated according to their primary drives of hunger, thirst, elimination, pain, and sex. - Tom Butler-Bowdon

Cognitive therapy’s revolutionary idea is that depression is not an emotional disorder. The bad feelings we have in depression all stem from negative thoughts, therefore treatment must be about challenging and changing those thoughts.

As the early memory researcher Hermann Ebbinghaus (1850–1909) wrote, “Psychology has a long past, but only a short history.” He meant that people have been thinking about human thought, emotion, intelligence, and behavior for thousands of years, but as a discipline based on facts rather than speculation psychology is still in its infancy.

The contribution of humanistic psychology to better relationships is recognized by the inclusion of Carl Rogers, whose influential book reminds us that relationships cannot flower if they don’t have a climate of listening and nonjudgmental acceptance, and that empathy is the mark of a genuine person.