The psycho-physiological hypothesis is both inductively and deductively the sine qua non of the science of psychology.

If society is to progress on a truly humanistic basis, without being subject to mental epidemics and virulent social diseases to which the subconscious falls an easy victim, the personal consciousness of every individual should be cultivated to the highest degree possible.

Human institutions depend for their existence and stability on the impulse of self-preservation and its close associate, - the fear instinct.

The recognition, the diagnosis, and the preservation of psychopathic individuals account for the apparent increase of neurotics in civilized communities.

Self-preservation is the central aim of all life-activities.

Mental synthesis of psychic content in the unity of a moment-consciousness is a fundamental principle of psychology.

Psychology must postulate uniformity of interrelation of physical, physiological, and psychic processes.