Originally Posted by
Fawsto
IMO, each of us need to find a phylosofical north to adress this problem. I've chosen Machiavelli due to its "goal" approach. I will stick to it since it allows someone (my interpretation from now on) to measure the nobility of its cause. There are some easily discernable "evil goals". So, by D&D standards, a Paladin would only choose the most noble goals. Such goals, would, for example, see the sacrifice of inocents as something evil, but not always. As I said, sometimes the noble goal may be "save the world", to wich the sacrifice of inocents would be a valid action.
There are too many interpretations of good and evil about the same topics. The only way that I see to solve this is to set a goal and compare those actions to the goals that you are pursuing.