The Spirits' Book
Book Three - Moral Laws
Chapter VIII - VII. Law of Progress
Influence of Spiritism on Progress
799. How can Spiritism contribute to progress?
“By destroying materialism, which is one of the plagues of society, and making people understand where their true interest lies. When human beings no longer doubt the future life; they will understand more clearly that they can guarantee their future by the present. By destroying the prejudices of divisions, castes and skin color, it teaches individuals about the great solidarity that will one day unite them as brothers and sisters.”