Attempting to satisfy the passions that rage inside us and the longings that motivate us, we invent spirituality, lean on political solutions, create new villains, turn our backs on Jesus, and blame a thousand tyrannies—but we never come to terms with the source of the problem deep within the heart and inclination of every human being. No matter our accomplishments or successes, our failures or shortcomings, the greatest struggle we face is within ourselves. — Ravi Zacharias (from, Has Christianity Failed You?)