For me, this is a very serious question because once I always tried to prove myself right even if it was wrong, but now I don't care if a person thinks the way I want or not. If I'm right, I just say my opinion and it doesn't matter if the person believes it or not, and if I'm wrong in some situations, I can very easily admit it, because it's very simple for me, and the person will be satisfied that I'm honest with them.