And when children begin to use their reason, fathers and mothers should take great pains to fill their hearts with the fear of God. This the good Queen Blanche did most earnestly by St. Louis, her son: witness her oft-repeated words, "My son, I would sooner see you die than guilty of a mortal sin;" words which sank so deeply into the saintly monarch's heart, that he himself said there was no day on which they did not recur to his mind, and strengthen him in treading God's ways.
Saint Francis de Sales