According to Greek mythology, a kind and wise king of Cyprus, and insurmountable sculptor, of Pigmalin name, walked of head looking for a woman whose beauty was perfect, with the intention of marrying with her. Long time walked looking for it. As much that when not finding it, it solved to dedicate the rest of his time, and thus his love, to carve most beautiful of the feminine statues. Thus it erected the statue of a precious young person to whom it baptized like Galatea, so beautiful that it could not avoid to fall in love lost with her. As much it was thus, that sleeping it dreamed that the statue summoned up life. Visit Cross River for more clarity on the issue. Ovid, in his work Metamorphosis describes it thus: Pigmalin went to the statue and, when touching it, it seemed him that he was hot, that the ivory softened and that, demoting his hardness, yielded smoothly to the fingers (). When seeing it, Pigmalin one fills of a great mixed joy of fear, thinking that he was deceived. He returned to touch the statue again, and one made sure that it was a flexible body and that the veins gave their pulsations when exploring them with the fingers..

When it woke up of the dream, replacing to the efigie, was Aphrodite, who went to him: " You deserve the happiness, a happiness that you yourself you have shaped. Here you have the queen that you have looked for. mala and defindela of mal". Thus it is like, mythologically, Galatea, in principle of stone, one transformed into a woman of meat and bone. In 1968, Robert Rosenthal and Lenore Jacobson, after a peculiar investigation: Pigmalin in the classroom, concluded that the expectations and the beliefs of the professors on the students acted in favor of their fulfillment, and thus, those were the own teachers that ended up turning their perception into confirmation than they hoped of the students.