What is Orthodoxy?
I think St. Seraphim of Sarov summed it up best with this simple statement, "The true aim of our Christian life consists of the acquisition of the Holy Spirit of God," the fruit of Whom is "love, joy, peace, patience, kindness, goodness, faithfulness, gentleness, and self-control." (Galatians 5:22)
Love is patient and kind; love is not jealous or boastful; it is not arrogant or rude. Love does not insist on its own way; it is not irritable or resentful; it does not rejoice at wrong, but rejoices in the right. Love bears all things, believes all things, hopes all things, endures all things.
Love never ends; as for prophecies, they will pass away; as for tongues, they will cease; as for knowledge, it will pass away. For our knowledge is imperfect and our prophecy is imperfect; but when the perfect comes, the imperfect will pass away. When I was a child, I spoke like a child, I thought like a child, I reasoned like a child; when I became a man, I gave up childish ways. For now we see in a mirror dimly, but then face to face. Now I know in part; then I shall understand fully, even as I have been fully understood. So faith, hope, love abide, these three; but the greatest of these is love.
(1 Corinthians 13:4-13)
This is the life of the Holy Spirit within the Church and within individual believers. This is Orthodoxy. Apart from this, all the Patristic wisdom in the world is nothing more than worldly philosophy.
"Acquire the Holy Spirit, and a thousand around you will be saved." - St. Seraphim of Sarov