The following was on another website - I thought they were very concise and easy to understand when defending our faith with Protestants.  There are 3 of them - here is #1

Someone asked Bishop Giles about this some time ago and while cleaning out some files this week I found it.  You could actually keep going until you reached the Apostles!

In dangers, in distress, in uncertainties, think of Mary, call upon Mary. Let her name not depart from your lips, let her never depart from your heart, and, that you may win the help of her prayers, never depart from the example of her life. Following her, you will never go astray; when you implore her aid, you will never despair; thinking on her, you will not err; while she sustains you, you will not fall; under her protection, you have nothing to fear; with her being your guide, you will not grow weary; if she be your propitious Star, you will arrive safely at your goal.

Homily 2 on Missus est Excerpt from Sermons of St. Bernard on Advent and Christmas (1909 edition), 47.

The Mother of God once said to her faithful servant St. Bridget: "No matter how

numerous a person's sins may be, if he turns to me with a sincere purpose of

amendment I am prepared forthwith to receive him graciously, for I do not regard the

number of sins he has committed, but look only upon the dispositions with which he

comes to me; for I feel no aversion in healing his wounds, because I am called and am in truth the Mother of Mercy."

"Poor abandoned sinners," exclaims St. Alphonsus Liguori, "do not despair! Raise your eyes to Mary and be comforted, trusting in the clemency of this good Mother. For she will rescue you from the shipwreck you have suffered and conduct you to the haven of salvation."