Mercy as it is here contemplated is said to be a virtue influencing one's will to have compassion for, and, if possible, to alleviate another's misfortune. It is the teaching of St. Thomas Aquinas that although mercy is as it were the spontaneous product of charity, yet it is to be reckoned a special virtue adequately distinguishable from this latter. In fact the Scholastics in cataloguing it consider it to be referable to the quality of justice mainly because, like justice, it controls relations between distinct persons. It is as they say ad alterum. Its motive is the misery which one discerns in another, particularly in so far as this condition is deemed to be, in some sense at least, involuntary. Obviously the necessity which is to be succoured can be either of body or soul. Hence it is customary to enumerate both corporal and spiritual works of mercy. The traditional enumeration of the corporal works of mercy is as follows: