All vices sink into our whole being, if we do not crush them before they gain a footing; and in like manner these sad, pitiable, and discordant feelings end by feeding upon their own bitterness, until the unhappy mind takes a sort of morbid delight in grief... In like manner, wounds heal easily when the blood is fresh upon them: they can then be cleared out and brought to the surface, and admit of being probed by the finger: when disease has turned them into malignant ulcers, their cure is more difficult.