Important concept in chapter 12

A concept in chapter 12 that I found important in chapter 12 was "judging analogies." When judging analogies, it is very important to survey the importance of similarities and guess the more important one that we find a general principle that will be able to apply to both sides of the argument. The example given in the book that I found useful for explaining this analogy was that Tom was talking about how homosexual marriage threatens the sanctity of marriage because every child needs both a mom and a dad. Not two parents of the same sex. Tom believes that a constitutional amendment will protect the sanctity of marriage. The same argument can be used against divorced family because a child needs both a mom and dad. If there is a law that will outlaw homosexual marriage then there should also be a law that outlaw divorces.