"often in their earliest years children display an unmistakable typical attitude... two children of the same mother may at a very early age exhibit opposite types, without the smallest accompanying change in the attitude of the mother... when there is an extreme and, therefore...
...abnormal attitude in the mother, the children can also be coerced into a relatively similar attitude; but this entails a violation of their individual disposition, which quite possibly would have assumed another type if no abnormal and disturbing external influence had...
...intervened. As a rule, whenever such a falsification of type takes place as a result of external influence, the individual becomes neurotic later, and a cure can successfully be sought only in a development of that attitude which corresponds with the individual's natural way".
... #Jung Psychological Types (Baynes trans) p415-6
furthermore "a reversal of type often proves exceedingly harmful to the physiological well-being of the organism, often provoking an acute state of exhaustion". p416
