Is there a reason why you continue to have a relationship with this person? Is the individual a family member or co-worker?
I know of the personality type that you speak of and it can be like walking on egg-shells at times.
MsDora gave some sage advice by saying one should tread carefully and lovingly.
I am kind of in a place in life, where I do not need to be right, and I don't need others to know they are wrong.
Perhaps it's just my personality, but I only take on battles that are truly important to me and let the rest pass me by, because life is just too short and who has the energy to engage in every confrontation that comes our way?