For a punishment to achieve its objective, it is only necessary that the harm that it inflicts outweighs the benefit that derives from the crime, and into this calculation ought to be factored the certainty of punishment that the commission of the crime will produce.
要让一种刑罚达到它的目标， 只需要让它造成的伤害 超过犯罪所带来的利益， 这种计算应该考虑到 刑罚的确定性 以及犯罪会产生的 利益的丢失。