Sons should be loved but not at the cost of daughters and daughters must be loved but not at the cost of sons.Both should be loved but not at the cost of discipline.Both sons and daughters are important ,so balance while loving them must be there and it should be as per their requirement i.e. daughters should be loved like daughters only,not like sons and sons should be loved like sons only ,not like daughters.Non of them should feel that their importance is less.However ,excess of every thing is bad.