I'm sure this is obvious, but one aspect of parenting that I hadn't realized was that Nate would learn how to treat Jack from watching how I treat Jack. It's both adorable and frightening to see how he mimics me, both in word and emotion.
A few days ago both boys were downstairs while I was up getting a few things out of their rooms. Jack starts to cry in his carseat, and I hear Nate saying "Mommy right back, baby Jack!" and "Don't cry, baby Jack. It's okay, baby Jack."
I've read that kids who are given sympathy when they're hurt give sympathy to other kids more readily. I can't believe how much force we have in shaping these little ones. I hope we're up for the task.