Quote from : Starting Point: 1979-1996 Book

[...] it would be false to say that because we're on the side of justice, we can go ahead and destroy our opponents and the world will be at peace. [...] Now, I know that there are such things as good and evil in the world, and that people do good things. But people who do good things are not necessarily good people, they just happen to be people who have done good things. The next instant they might wind up doing something bad, and if we don't take that into account in our view of humans, we'll constantly make mistakes when making political decisions or decisions about ourselves.