We have seen that intellect and achievement are far from perfectly correlated. Lewis Terman More Quotes by Lewis Terman More Quotes From Lewis Terman There is nothing about an individual as important as his IQ, except possibly his morals. Lewis Terman intelligence psychology individuality It is evident, therefore, that one of the most fundamental problems of psychology is that of investigating the laws of mental growth. When these laws are known, the door of the future will in a measure be opened; determination of the child's present status will enable us to forecast what manner of adult he will become. Lewis Terman future determination children