If we are immortal, or if we become immortal, it will not be because we want to or because it is indispensable for morality, but because in a universe like ours we can no more help it than we can help feeling warm before a fire. So considered, personal immortality can be treated as any other alleged fact. Dr Mathews examines it in the light of physiology, biology, and psychology; and through the keenness of his reasoning reaches a conception of the survival of personality that will forcefully commend itself to thinking people.