“Have I done something for the general interest? Well, then I have had my reward.” -Marcus Aurelius
Don’t keep score. If you do something good, don’t be expectant of a reward. You already got your reward. You know that you did something good, that’s all you need. If you always do things in expectation of what you’ll get as a result, you’ll be so much more likely to become resentful. However, if your reward is doing the right thing, you’ll never be without reward. Live a rewarding life.