Fundamentalists from all religious persuasions deny the possibility of morality without belief in God. Yet belief in God is no guarantee of moral virtue - as the evils committed in the name of religion, past and present, have shown. Are there ethical, nonreligious choices that will work for a world in crisis? In this original and penetrating book, America's leading secular humanist philosopher affirms that it is possible to live the good life and be morally responsible without belief in religion. Kurtz delineates the means by which humanity can transcend the limitations of traditional religious loyalties and achieve a higher stage of ethics. In order to progress to a maximum level of creative development, the author maintains that we must be nourished by the "forbidden fruit" of the knowledge of good and evil, grounding principles and values in autonomous reason. This is the path that leads to the discovery of significant ethical truths that can guide both self-reliant conduct and consideration for the rights of others. By breaking the bonds of theistic illusion, we can summon the courage and wisdom to develop a rational ethic based on a realistic appraisal of nature and an awareness of the centrality of the moral decencies common to all peoples. The ultimate key to the good life is to eat of the fruit of the second tree in the Garden of Eden - the tree of life - discovering for ourselves the manifold potentialities for a bountiful existence.