I would really like to read the following quote from St. Basil the Great in its full context but I'm having problems locating it. Does anyone know where online I can read the full letter/epistle/whatever where this quote is from? I have had no luck googling it and thought maybe I could find it on the Catholic New Advent website but I haven't been able to find it yet.
"As for all those who pretend to confess sound Orthodox Faith, but are in communion with people who hold a different opinion, if they are forewarned and still remain stubborn, you must not only not be in communion with them, but you must not even call them brothers." (Patrologia Orientalis, Vol. 17, p. 303)