“The Western teaching that the Holy Virgin was born without sin was not accepted by any Christians until the Papal church adopted this doctrine in the ninth century. From an Orthodox view, this teaching completely negates the Virgin Mary’s virtue, for how could she have represented all of humanity, as the new Eve, had she not been born like the rest of us? It was her purity and virtue that made her the candidate to become the Theotokos (God Bearer).”
(Abbot Tryphon in ‘Glory to God in all Things’)

http://orthodoxchurchquotes.files.wordpress.com/2013/12/theotokos-8.jpg