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.

— Boris Sidis The Source and Aim of Human Progress (1919)

More quotes by Boris Sidis

Nervous Ills their Cause and Cure (1922)

The Foundations of Normal and Abnormal Psychology (1914)

Philistine and Genius (1919)

Multiple Personality: an Experimental Investigation into Human Individuality (1904)

Nervous Ills their Cause and Cure (1922)

Quote text and notes from Wikiquote: Boris Sidis (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.