Knowing right from wrong is not what you were talking about. You were describing life as misery. You were claiming life is misery and we have no control or choice except to be miserable.
And if your life is about love, laughter and service, you will always do the right thing.
Knowing Right from Wrong is all that there is to talk about. Misery is the proper (Right) way of life. If you're happy, laughing and loving then you are not paying enough attention to what you should be doing in life. I find that the "lovers" in life are generally the ones doing things Wrong most often. They're too caught up in the emotion to understand the logic of why their life is improper.