55:3.10

On these superb worlds the childbearing period is not greatly prolonged. It is not best for too many years to intervene between the ages of a family of children. When close together in age, children are able to contribute much more to their mutual training. And on these worlds they are magnificently trained by the competitive systems of keen striving in the advanced domains and divisions of diverse achievement in the mastery of truth, beauty, and goodness. Never fear but that even such glorified spheres present plenty of evil, real and potential, which is stimulative of the choosing between truth and error, good and evil, sin and righteousness.