Ingratitude as Privation of Freedom

"All the truths we are blessed in knowing, all beauty we are allowed to enjoy; every moment of good health and every bit of nourishment we take - all these are undeserved benefits in no wise due to us. How often do we misuse the gifts of God; with how much ingratitude and indifference do we requite His blessings? Yet, as soon as habit deludes us into misjudging our metaphysical situation, as soon (under the influence of habit) our nature represents to us any possessions or privileges we enjoy as self-evident rights, we have eo ipso renounced true freedom. For all subjection to illusions, and in particular, all misconceptions of our situation relative to God, necessarily imply a privation of freedom." -- Dietrich Von Hildebrand, Transformation in Christ