" You can't be right by doing wrong; you can't be wrong by doing right." 

--Thomas S Manson--

What this is saying is that you can't be right by doing wrong and you can't be wrong by doing right because if you do something right doesn't mean you did the right thing and if you do something wrong doesn't mean you didn't do it right. This quote is saying that some people do the wrong thing and think they didn't do the right thing and then there's other people that think they did the right thing and think they should leave things like that because they did the right thing. You can never be right by doing wrong and you can't be wrong if you do the right because you don't know if you did the right or wrong thing so you can't say that you did the right thing or that you did the wrong thing because you didn't do the right thing.