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.

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

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

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.

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.

Science is the description of phenomena and the formulation of their relations.