St. Francis de Sales
"All true and living devotion presupposes the love of God and indeed it is neither more nor less than a very real love of God, though not always of the same kind; for that Love one while shining on the soul we call grace, which makes us acceptable to His Divine Majesty; when it strengthens us to do well, it is called Charity; but when it attains its fullest perfection, in which it not only leads us to do well, but to act carefully, diligently, and promptly, then it is called Devotion. "
