Not purpose but chance is at the heart of mental life.

Suggestibility varies as the amount of disaggregation, and inversely as the unification of consciousness.

The general tendency of evolution is from structure to function, from bondage to freedom of the individual elements.

The fact that psychology postulates an external material world and studies it in so far as it comes to be reflected in consciousness, points to another postulate which psychology must assume in addition, namely, the existence of an inner world consciousness.

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.

Not purpose but chance is at the heart of mental life.