I've seen many books and apps meant to teach the teachings of Person X, who died centuries ago. I have a book by Party B called "Life according to Person X". This book says "All Rights Reserved" and it also says
Under the Indian Copyright Act, all rights of the contents and photographs of this book are reserved by Publisher B, B Address. Therefore, no part of this book including the name, title, design, inside matter or photographs be reproduced or copied in any form or by any means, in full or in part, in any language. Breach of this condition is liable to legal action and fine.
Can Party B have the exclusive right to distribute this content? If Party A makes an app almost entirely based on Person X's teaching, can Party B accuse Party A of violating any sort of law? Could Party A then monetise this app?
Is it legal for Party A to use Person X's quotes/teachings souced from Party B's book? Why, and under what circumstances?