The tendency of life is not the preservation of the species, but solely the preservation of each individual organism, as long as it is in existence at all, and is able to carry on its life processes.

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

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.

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

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

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.