Openness
We don’t need to have an opinion about everything. Let alone fight to protect it. Even current societal norms do not promote actual openness - far too often, they are still fueled by impatience towards those who have different opinions.
On the other hand – being open means accepting unconditionally. It means accepting even the things we may have an urge to disagree with. So sometimes, it’s worth to consciously practice being non-reactive. Or even just shrugging and saying: That’s OK... and moving on.