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.

The principle of recognition of evil under all its guises is at the basis of the true education of man.

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

The man of genius whether as artist or thinker requires a mass of accidental variations to select from and a rigidly selective process of attention.

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.

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

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.