A discussion of temperament and how sensitive children, in particular, are so resilient due to differential susceptibility. Understanding the temperaments of family members is a key to harmony. In fact, couples who understand the temperament of both partners have been shown to stay together and have a much stronger relationship than those who don’t know about temperament. The same is true in parenting. While you hopefully won’t divorce your children, you will have a much smoother parenting life when you take temperament into account.