Not purpose but chance is at the heart of mental life.
Self-preservation is the central aim of all life-activities.
The course of evolution is to a greater integration of similarly functioning ganglia.
Science is the description of phenomena and the formulation of their relations.
The recognition, the diagnosis, and the preservation of psychopathic individuals account for the apparent increase of neurotics in civilized communities.
Psychology is the science of psychic states both as to content and form, regarded from an objective standpoint, and brought in relation to the living corporeal individual.