Do not be daunted by the enormity of the world's grief. Do justly, now. Love mercy, now. Walk humbly, now. You are not obligated to complete the work, but neither are you free to abandon it.
The task of making peace ... is not just a matter of realpolitik; it is a matter also of spirit. It requires us not only to deal with the practicalities of our place in the cosmic order of things. We must know who we are and what we are doing -- know not only with the intellect, but with our whole being, in the way that mystics have always achieved the knowledge that has given our species its deepest guidance.