I wish I'd known -- That having children radically changes your schedule -- That children are expensive -- That no two children are alike -- That potty training is no laughing matter -- That children need boundaries -- That children's emotional health is as important as physical health -- That children are greatly influenced by our model -- That sometimes parents need to apologize -- That social skills are as important as academic skills -- That parents are responsible for their child's education -- That marriages do not thrive on autopilot -- That children can bring you great joy.