The main source of psychopathic diseases is the fundamental instinct of fear with its manifestations, the feeling of anxiety, anguish, and worry.

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.

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

The main source of psychopathic diseases is the fundamental instinct of fear with its manifestations, the feeling of anxiety, anguish, and worry.

The course of evolution is to a greater integration of similarly functioning ganglia.

Social laughter is momentary, soon burns itself out and passes away like the fire and smokes of straw, but genius shakes the very skies with its lasting, inextinguishable laughter.

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.