In this essay the author discuss two concepts of definition the family which are linked with two different ideologyes, cultural conservatism and liberalism. At the end of the 20th century they are recognised as the concepts who, although from different position, are fighting the same battle: for the family. Special reflection on Wartenbergs interpretation of “transformative power” shows an incapacity of the feministic theory of domination and power based on classical male-female, family-society dichotomy to see that power and power-over has not only the negative essence. “Transformative power” used by parents is in essence positive power because it helps those who have no power to become autonomous beeings what leeds to its own elimination.