A crash course in changing the world.
I think that the quote means that there is plenty more room in this world for people to do good. The bad stuff can be stopped, but the good will (hopefully) always continue.
I think this phrase, "That which is good is never finished" means that doing good will never stop. So there will always be bad people and even if there were no bad things then what would keep us being good what lessons could we learn from? So the deed of being good is a never-ending job. So to EVOKE it means that they can't stop being good because there is always bad things out there so they should always being fighting for the greater good.
something that is good lives on forever in your mined and in your heart.
I think the phrase means that nothing will be good forever, so you have to change that and kept good going.
I think it means that when people do good for other people that they never stop doing good and it is what they do for a life time.
I think this means that if something does good for the community then it never ends, no matter what people think. It just keeps helping people.
I think this means that you can never stop doing good. There is always more to be done.
I think this means that your not done unless what you did is GREAT not good.