when i do good

 i feel good 

when i do bad

 i feel bad

abraham lincoln
doing bad is doing the wrong and doing good is doing the right and what you feel is good
and bad well determine you life and the good life you will have in the future because when you feel good is because you know you did something correct and when you dont it makes you know you had a mistake so i think you should prefer having  the good then the bad.