Every historic period has had its Cassandras. Our era is the first in which prophecies of doom stem from objective scientific analyses. - Bernard Lown

If we are to succeed, this vision must possess millions of people. We must convince each generation that they are but transient passengers on this planet earth. It does not belong to them. They are not free to doom generations yet unborn. They are not at liberty to erase humanity's past nor dim its future. Only life itself can lay claim to sacred continuity. The magnitude of the danger and its imminence must bring the human family together in common pursuit of peace denied throughout the century. On the threshold of a new millennium the achievement of world peace is no longer remote, for it is beckoned by the unleashing of the deepest spiritual forces embedded in humankind when threatened with extinction. The reason, the creativeness, and the courage that human beings possess foster an abiding faith that what humanity creates, humanity can and will control.

We must hold fast to the dream that reason will prevail. The world today is full of anguish and dread. As great as is the danger, still greater is the opportunity. If science and technology have catapulted us to the brink of extinction, the same ingenuity has brought humankind to the boundary of an age of abundance. Never before was it possible to feed all the hungry. Never before was it possible to shelter all the homeless. Never before was it possible to teach all the illiterates. Never before were we able to heal so many afflictions. For the first time science and medicine can diminish drudgery and pain. Only those who see the invisible can do the impossible. But in order to do the impossible, in the words of Jonathan Schell, we ask "not for our personal survival: we ask only that we be survived. We ask for assurance that when we die as individuals, as we know we must, mankind will live on".

We physicians who shepherd human life from birth to death have a moral imperative to resist with all our being the drift toward the brink. The threatened inhabitants on this fragile planet must speak out for those yet unborn, for posterity has no lobby with politicians.