As in the natural life a child must have a father and a mother, so in the supernatural life of grace a true child of the Church must have God for his Father and Mary for his mother. If he prides himself on having God for his Father but does not give to Mary the tender affection of a true child, he is an impostor and his father is the devil.
Louis de MontfortEver since Blessed Alan de la Roche re-established this devotion the voice of the people, which is the voice of God, called it the Rosary. The word Rosary means "Crown of Roses" that is to say that every time people say the Rosary devoutly they place a crown of one hundred and fifty-three red roses and sixteen white roses upon the heads of Jesus and Mary. Being heavenly flowers these roses will never fade or lose their exquisite beauty.
Louis de MontfortEven if you are on the brink of damnation, even if you have one foot in hell, even if you have sold your soul to the devil as sorcerers do who practice black magic, and even if you are a heretic as obstinate as a devil, sooner or later you will be converted and will amend your life and will save your soul, if-and mark well what I say-if you say the Holy Rosary devoutly every day until death for the purpose of knowing the truth and obtaining contrition and pardon for your sins.
Louis de MontfortWe must conclude that, being necessary to God by a necessity which is called "hypothetical", (that is, because God so willed it), the Blessed Virgin is all the more necessary for men to attain their final end. Consequently we must not place devotion to her on the same level as devotion to the other saints as if it were merely something optional.
Louis de Montfort