"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...