So the human heart, which divine love had kept secure, and which had kept itself in unity by loving only One, now began to flow out in all directions through earthly desires. For the mind which does not know how to love its true good is never stable and never rests. Here is the source of restlessness, ceaseless labour, disquiet - until we turn and cling again to God. The sick heart trembles and staggers; the cause of its disease is love of the word; its remedy is love of God.
- Hugh of Saint Victor (1049-1141), The Moral Ark of Noah, Prologue
