"Besides, I had found a secret pleasure, during my confinement, from the perusal of good books, to which I had given myself up with a delight I never before experienced. I consider this as an obligation I owe to fortune, or, rather, to Divine Providence, in order to prepare me, by such efficacious means, to bear up against the misfortunes and calamities that awaited me. By tracing nature in the universal book which is opened to all mankind, I was led to the knowledge of the Divine Author. Science conducts us, step by step, through the whole range of creation, until we arrive, at length, at God. Misfortune prompts us to summon our utmost strength to oppose grief and recover tranquillity, until at length we find a powerful aid in the knowledge and love of God, whilst prosperity hurries us away until we are overwhelmed by our passions. My captivity and its consequent solitude afforded me the double advantage of exciting a passion for study, and an inclination for devotion, advantages I had never experienced during the vanities and splendour of my prosperity."