My husband won't take advice from parenting books, until I prove the author's children turned out well.

Sorry reposted because it was removed (linking rule) 1st off this is pretty impossible to prove.Any advice how to help my husband not focus on the author and take in the advice he likes and not use what he doesn't?BTW I am listening to the audiobook "No-Drama Discipline" by Tina Payne Bryson, & Daniel J Siegel And I have been sharing with him the points I find interesting/relate-able via /r/Parenting http://ift.tt/2fjXoKA