St. Gregory of Nazianzus' Letter CXXX:
For my part, if I am to write the truth,
my inclination is to avoid all assemblies of bishops,
because I have never seen any Council come to a good end,
nor turn out to be a solution of evils.
On the contrary, it usually increases them.
You always find there love of contention and love of power
(I hope you will not think me a bore, for writing like this),
which beggars description;
and, while sitting in judgment on others,
a man might well be convicted of ill-doing himself
long before he should put down the ill-doing of his opponents.