“An infant or child is not "free" to select the nature of his sensory environment”
"Before Ethics and Morality" (1972)
Context: An infant or child is not "free" to select the nature of his sensory environment but is dependent upon adults for the quality of his sensory environment and, thus, [for] his neurobiological development and psychobiological predispositions for certain kinds of behavior. From this perspective, it is evident that before a child can reason and before reason can establish principles of moral behavior, the course of an ethical and moral life has already been set.
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James W. Prescott 33
American psychologist 1930Related quotes

This is Your Brain on Music (2006)
Context: During the first six months or so of life... the infant brain is unable to clearly distinguish the source of sensory inputs; vision, hearing, and touch meld into a unitary perceptual representation.... inputs from the various sensory receptors may connect to many different parts of the brain, pending pruning that will occur later in life. As Simon Baron-Cohen has described it, with all this sensory cross talk, the infant lives in a state of complete psychodelic splendor (without the aid of drugs).

Source: The Dragons of Eden (1977), Chapter 2, “Genes and Brains” (p. 28)

Psychoanalysis and the Unconscious (1921)
Brian Vickery (2009) " The development of knowledge http://web.archive.org/web/20100125043520/http://www.lucis.me.uk/devtknow.htm" on lucis.me.uk, 2009.