It's okay to be wrong...and admit it.
Lets face it, nobody likes to be wrong, litelone admit it. So far I've learned , after many years of being stubborn, that it's better to just admit when you're wrong, because in the end it can save a lot of disagreements, and quite frankly a lot of time.
Nobody is perfect, we will always be sinners, and we will always be wrong about something at some point or another, it's inevitable, but in the end when we're in a situation where we're wrong...just admit it. Trust me, it will suprisinly make your life much easier.