Besides the Hare Krishna Maha-Mantra, I beg to propose a second Maha-Mantra as follows:
STUDY BOOKS STUDY BOOKS
STUDY STUDY BOOKS BOOKS
DISTRIBUTE BOOKS DISTRIBUTE BOOKS
DISTRIBUTE DISTRIBUTE BOOKS BOOKS.
“Our first business is this book distribution. There is no need of any other business. If this book distribution is managed properly, pushed on with great enthusiasm and determination and at the same time if our men keep spiritually strong, then the whole world will become Krishna conscious.” 760105Let.Satsvarupa