karma?

Do you believe that if you could have done something for a person but you didn't and that person couldn't hold anything against you because they didn't even know that you could have done this thing for them in the first place that your own semi-selfishness will make the world a worse place? Do you believe other people are better than you? Or are they just as bad but won't admit it (not that I'm admitting it either)? Do you believe in karma?

I'm undecided.