We shall never learn to know ourselves except by endeavoring to know God; for, beholding His greatness we realize our own littleness; His purity shows us our foulness; and by meditating upon His humility we find how very far we are from being humble.
"Interior Castle" by Teresa of Avila, (Ch. 2), as translated by the Benedictines of Stanbrook (1911), revised and edited by Fr. Benedict Zimmerman, 1577.