They're optimistic, but not brashly so. Bill and Melinda Gates have literally saved millions of children. If that doesn't give them a reason to be optimistic, I

They're optimistic, but not brashly so. Bill and Melinda Gates have literally saved millions of children. If that doesn't give them a reason to be optimistic, I don't see what would. Just because Americans are shooting up schools doesn't mean that the lives of people in some other parts of this planet haven't improved by leaps and bounds in the last few years alone.