THE preface to a book serves the double purpose of prologue and epilogue.
He had the past for his prologue, and the future for his epilogue.
A few words of explanation are necessary by way of prologue.
The Prologue is printed in full by Malone, Variorum, iii, 79.
Here is a scene from it, the first after the Prologue, which would have been spoken by Odysseus.