INTRODUCTION
TO THE KNOWLEDGE OF THE INVISIBLE WORLD,
AFTER THE SPIRITS' MANIFESTATIONS
CONTAINING
THE FUNDAMENTALS OF THE SPIRITIST DOCTRINE
AND RESPONSES TO THE MAIN OBJECTIONS CAST AGAINST IT
BY
ALLAN KARDEC
AUTHOR OF THE SPIRITS’ BOOK, THE MEDIUMS’ BOOK,
AND DIRECTOR OF THE REVUE SPIRITE
Without charity there is no salvation.
