now there will be no market. I may lawfully use persuasion to induce a rich relative to leave his money to me, though others who would have had it thereby suffer loss. If, however, I make use of unjust means such as threats, violence, or calumny, and so prevent another from getting what he otherwise would have got, I commit a sin against justice and am bound to make restitution to the injured party. This is true even though he had no strict right to what he would have got, for at least he had a right not to be balked of his expectations by unjust means. And so in a competitive examination or concursus where something of value is the prize at stake, one who secures the prize by unjust means must make restitution to him who would otherwise have secured it. If there were no certainty of his securing it, restitution as far as possible must be made according to the degree of probability of his success. (c) The unjust action must be the cause, not merely the occasion, of damage being done to another, in order that there may be an obligation of making restitution. For we are only responsible in justice for damage which we have caused. And so if I commit theft and others are induced to do the same by my bad example, I am indeed bound to make restitution for what I have stolen, and I commit a sin against charity by giving bad example to others; but probably at least, according to many theologians, I am not bound to make restitution for what others stole through my bad example. Similarly, I am not bound to make restitution for damage which was caused accidentally by my action, when there was antecedently no probable connection between my action and the damage caused. As, for example, if I lit a fire in my property, and there was no probable danger of its causing damage to my neighbour, I am not in conscience before judicial sentence bound to make good damage which it caused him on account of an unforeseen change in the direction of the wind. Some theologians would bind the man who lit the fire to restitution in this case if he hoped for the change of wind and intended the damage. They say that the wrongful intention supplies the want of physical causation and puts him under the obligation of making restitution. This opinion is probable, but the opposite also is probable, for although the evil intention makes the man guilty of affective injustice, he is not guilty of effective injustice, for his evil intention makes no difference in the physical sequence of cause and effect, and if he was not the cause of the damage prescinding from his evil intention, that evil intention could not make him the cause.
