Mat 12:46-50
46 While he yet talked to the people, behold, [his] mother and his brethren stood without, desiring to speak with him.
47 Then one said unto him, Behold, thy mother and thy brethren stand without, desiring to speak with thee.
48 But he answered and said unto him that told him, Who is my mother? and who are my brethren?
49 And he stretched forth his hand toward his disciples, and said, Behold my mother and my brethren!
50 For whosoever shall do the will of my Father which is in heaven, the same is my brother, and sister, and mother.
Don't get me wrong, I love Mary as a believing sister, and I know she would tell us all that she needed a savior for her sins.
I have to get up in the morning, so this is it for me this evening, but put this quote in context and it says something else.
Mary was with the program from the beginning. At the Annunciation, she said, "Let it be done to me according to thy word." That is what God - Father, Son and Holy Ghost - ask of us. She is our example of motherly humility. Her son did not have to tell her anything. She knew it from the beginning. See the Magnificat.