. . . already widespread concern about the possibility of biological and chemical tampering with what has until now been considered the immutable essence of man. Human conduct, some argue, can be predetermined and subjected to deliberate control. Man is increasingly acquiring the capacity to determine the sex of his children, to affect through drugs the extent of their intelligence, and to modify and control their personalities. Speaking of a future at most only decades away, an experimenter in intelligence control asserted, “I foresee the time when we shall have the means and therefore, inevitably, the temptation to manipulate the behavior and intellectual functioning of all the people through environmental and biochemical manipulation of the brain.”
— Zbigniew Brzezinski, Between Two Ages: America’s Role in the Technetronic Era, 1970, Viking Press, New York. Page 15.