Moreover, these experiences may also explain Kant’s exclusion of emotion from ethics; a curious exclusion, given his emphasis of the importance of the good will (Foundations of the Metaphysics of Morals 1785; 4:393–5). Anna Kant died in 1737, when Immanuel was thirteen. From then on, the sensitive teenager associated “morality under the guidance of feeling” only negatively. This may be due, in part, to the daily exposure to the guilt associated with the doctrines of morality to which Immanuel was exposed at the Collegium. And without a mother as an affectionate and sane counterweight, the oppressiveness and negative associations of guilt and morality must have taken its toll. He suffered the pious whim of teachers, eager to instill feelings of guilt for the sake of salvation.  His later contempt for emotion is arguably unjustified, but his upbringing suggests an explanation.