It is a thoughtful reflection on the relationship between moral duty and political possibility in the recognition that the two are not always nicely matched. (firstthings.com)
Each one of us has a certain moral duty to do everything we can to fix up the mess we and our ancestors have made. (johnquiggin.com)
On the latter point, the position that legal obligations do not always trump moral duty is mainstream in legal ethics. (slaw.ca)