HARRY STACK SULLIVAN and THE SELF-SYSTEM
The word "self-system" is more accurately conveyed by the term "self-protecting system". The self-system is composed of all of the security operations by which a person defends himself/or herself against anxiety and seeks emotional security.
Most people get along fairly well with most other people much of the time. Thus, there is a basic tendency toward emotional health and sound interpersonal functioning. If other things do not interfere, personalities tend to grow in healthy ways, and interpersonal relationships tend to proceed in a sound manner.