This words were spoken by Hippocrates who is most famously know for the Hippocratic oath taken by most health professionals.  In this quote Hippocrates asks two simple things to help or at least to do no harm.  While this may be hard for some people, because many people have a hard time knowing the difference between harm and help and many also think they are helping when they may be doing harm.  This is a simple reminder that we can all use help sometimes.  But let this also serve as a reminder that help can sometimes be harmful.  Make a concerted effort to know the difference.