The Spirits' Book
Book Three - Moral Laws
Chapter XII - Moral Perfection
Virtues and Vices
898. Physical life is only a temporary stopover and our future life is what we should care about primarily. Is there any point in trying to acquire scientific knowledge that only refers to the objects and wants of this world?
“Of course there is. This knowledge enables you to benefit humankind. Also, if your spirit has already progressed in intelligence, it will rise faster in the spirit life and learn in an hour what it would take years to learn on Earth. No knowledge is useless since it all contributes to your advancement in one form or another. A perfect spirit must know everything and progress must be made in every direction. All acquired ideas help forward development.”