Someone is not Orthodox just because he does not slip some new dogma into the Church of God, but because he possesses a life which keeps harmony with true teaching.
—Golitzin, Alexander. On the Mystical Life: The Ethical Discourses / St. Symeon the New Theologian. Vol. 3: Life, Times, and Theology. Popular Patristics Series 16. Crestwood, NY: St Vladimir’s Seminary Press, 1997, 199.