The psycho-physiological hypothesis is both inductively and deductively the sine qua non of the science of psychology.
Boris SidisThe man of genius whether as artist or thinker requires a mass of accidental variations to select from and a rigidly selective process of attention.
Boris SidisHuman institutions depend for their existence and stability on the impulse of self-preservation and its close associate, - the fear instinct.
Boris Sidis