“We need the courage to start and continue what we should do, and the courage to stop what we shouldn't do.” - Richard L. Evans

What Richard is trying to say is that you should continue doing good thing and stop doing the bad things. And also to have the courage to stop all the bad things. And also to have the courage to do good things and to have the courage stop the wrong things. Like you should have the courage to continue doing the right thing and to courage yourself to stop choosing the wrong. For example if you have bad grades  you have to courage yourself to put your grades up because that depends on your future. And if you have good grades then you have to courage yourself to keep them up because that will bring good to you and give you a bright future. I agree with Richard because you always have to have the courage to do the right thing or the bad.