Torn Notebook on church unity and variance

I'd like to point out the posts of Torn Notebook on the historical allowances for variance in issues of faith. He makes use of excellent Church Fathers citations and modern books to point to a number of facts. One, that our greatest saints (e.g. St. Basil and St. Gregory of Nazianzus) allowed for difference of understanding, linguistic limitation, etc. on what would now be considered bright lines of division. Two, that differences exist as much among the pious and orthodox as with the impious. Three, an implicit entreaty for appreciating those and other facts mentioned in the post in such a way as to enlighten and slacken the rigidity with which we approach those matters (i.e. look to the fulness of Church tradition and acknowledge the normative guidance therein).