Karma is one of those topics that many people know a little about, but few understand the intricacies of it. To start with, Newton's third law of motion is that for every action there is an equal and opposite reaction. On the universal scale, this is the law of karma. The law of karma basically states that every action has a reaction and whatever you do to others will later return to you. Furthermore, ignorance of the law is no excuse. We are still accountable for everything we do, regardless of whether we understand it or not. Therefore, the best thing is to learn how it works.