> Frequently ask yourself: do I want to be right, or do I want to be happy? I always felt that people giving this advice assume the latter is preferable. Is there something defective about me if I prefer the former?
So the context is the important thing. You probably want to be "right" not "happy" in some circumstances. But in the case of most social activities, attempting to get to "truth" is usually playing the wrong game. You may think you are having a discussion on, say, the causes of the collapse of the Roman Empire. And you may really believe there is a "right" answer and that you have it. But if you are at most parties and socializing with most people, no one is trying to get to the root cause of historical facts.
So it is really an optimization problem. You just have to ask yourself: in this moment, in this context, with these people - are we optimizing for "truth"? Or should I be optimizing for enjoyment/amusement/happiness? This is sometimes referred to as "being on the same wavelength". If you are optimizing for "truth" and everyone else is optimizing for "happiness", you might find yourself optimized out of the equation.