Una serie de cuadernillos que presentan consejos inspiradores y prácticos, basados en las enseñanzas de Paramahansa Yogananda, sobre la manera de vivir con gracia y simplicidad, con ecuanimidad interior y, sobre todo, con alegría.
The book "The Origin of the Family System, the State, and Individual Property" by Friedrich Engels is considered an essential reference in Marxist philosophy, as it deals with the origin and development of family relations, and the relationship between those relations and economic changes.