Rhaenys Targaryen: Whether it's to my daughter or to someone else's, your father will remarry sooner than late. His new wife will produce new heirs, and chances are better than not that one of those will be male. And when that boy comes of age and your father has passed, the men of the realm will expect him to be heir, not you. Because that is the order of things.
Rhaenyra Targaryen: When I'm Queen, I will create a new order.