Eric Berne
Author: Eric Berne
Publisher: Grove Press (1972)

Children do things for someone.  The boy is bright or athletic or successful for mother, and the girl is bright or beautiful or fertile for father.  Or, on the other side, the boy is stupid or weak or clumsy for his parents, and the girl is stupid or ugly or frigid for hers, if that is what they want.  It should be added that they have to learn from someone if they want to do it well.  To do it for someone and to learn from someone is the real meaning of the script apparatus.  As already noted, the children usually do it for the parent of the opposite sex and learn from parent of the same sex.