The Spirits' Book
Book Three - Moral Laws
Chapter VII - VI. Law of Society
773. Why is it that, in the case of animals, parents and children forget each other when the latter no longer need to be cared for?
“Animals live a physical life and not a moral life. The tenderness of the mother for her young is prompted by the instinct of self-preservation for her offspring. When these beings are able to take care of themselves, her job is done. Nature asks no more of her, and she abandons them to busy herself with the next newborns.”