This works in both direction, CV:

We instruct the LBS that even when we may disagree with our spouse, we validate their opinions.

Validating does not mean that we agree with them, it simply means that we accept that they believe their opinions and have their feelings which may be different than ours.

The language we relay that information with can be important. Words can be very precise, but everyone has their own perspective and will interpret even the most obvious facts through their own filters.

"I understand your position and will take it into consideration." might be something you would say to your H. You are neither saying he is "right" nor are you saying that you will integrate his opinions into your own set of beliefs. Just that you are open to allowing his differing position into your relationship as you hope he eventually mirror on your opinions.

Do unto others...