We are driven by five genetic needs: survival, love and belonging, power, freedom, and fun.

William Glasser

William Glasser, M.D. (born May 11, 1925) is an American psychiatrist. Born in Cleveland, Ohio, he is the developer of reality therapy and choice theory. His ideas, which focus on personal choice, personal responsibility and personal transformation, are considered controversial by mainstream psychiatrists, who focus instead on classifying psychiatric syndromes, and who often prescribe psychotropic medications to treat mental disorders.