The pious and learned Jesuit, Suarez, Justus Lipsius, a devout and erudite theologian of Louvain, and many others have proved incontestably that devotion to our Blessed Lady is necessary to attain salvation.
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 MontfortAs 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 MontfortIf devotion to the Blessed Virgin is necessary for all men simply to work out their salvation, it is even more necessary for those who are called to a special perfection. I do not believe that anyone can acquire intimate union with our Lord and perfect fidelity to the Holy Spirit without a very close union with the most Blessed Virgin and an absolute dependence on her support.
Louis de MontfortThe rosary is the most powerful weapon to touch the Heart of Jesus, Our Redeemer, who loves His Mother.
Louis de MontfortFrom day to day, from moment to moment, she increased so much this twofold plenitude that she attained an immense and inconceivable degree of grace. So much so, that the Almighty made her the sole custodian of his treasures and the sole dispenser of his graces. She can now ennoble, exalt and enrich all she chooses. She can lead them along the narrow path to heaven and guide them through the narrow gate to life. She can give a royal throne, sceptre and crown to whom she wishes.
Louis de Montfort