Family Systems by Bowen

Overall Principles of Family Systems Theory & Therapy

"The same patterns that exist in families are present also in social and work relationships and relationship patterns have the quality of systems."

"Systems therapy assumes that all important people in the family unit play a part in the way family members function in relation to each other and in the way the symptom finally erupts." 

"The family is a system in that a change in the functioning of one family member is automatically followed by a compensatory change in another family member."

Alcoholism as viewed through family systems theory and family psychotherapy by Murray Bowen in Annals of New York Academy of Sciences (1974).