Here's an article on war; on whether or not it is caused by innate drives; how we can overcome a pugnacious past; and what may lie in wait to prevent this flight to Brotherhood.

A crucial first step toward ending war is to reject fatalism, in ourselves and in our political leaders. That is the view of the Harvard biologist Edward O. Wilson, who is renowned for his conservation efforts as well as for his emphasis on the genetic underpinnings of social behavior. A rangy man with a raptor’s long, narrow nose and sharp-eyed gaze, Wilson has not budged from his long-standing position that the propensity for group aggression, including war, is deeply ingrained in our history and nature. He notes, however, that group aggression is highly “labile,” taking many different forms and even vanishing under certain circumstances.

He is therefore confident that we will find ways to cease making war on nature as well as on each other, but it is a race against time and human destructiveness. “I’m optimistic about saving a large part of biodiversity,” he says, “but how much depends on what we do right now. And I think that once we face the problems underlying the origins of tribalism and religious extremism—face them frankly and look for the roots—then we’ll find a solution to those, too, in terms of an informed international negotiation system.” Wilson pauses and adds, “We have no option but optimism.”