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.

Suggestibility varies as the amount of disaggregation, and inversely as the unification of consciousness.

The general tendency of evolution is from structure to function, from bondage to freedom of the individual elements.

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

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.

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.