We need to take the offensive in whatever beliefs we hold dear. We must not allow others to ask us the questions, putting us on the defensive, and defining the terms of debate. We must play that role.
In related news, Friedman says in "The Relation between Economic Freedom and Political Freedom,": "Underlying most arguements against the free market is a lack of belief in freedom itself." So, the first question we are to ask is: Do you believe in freedom? If their answer is no, we are to reply: Good, then hold still while I rob and kill you.