only which among actual past voluntary actions were right, but also which among those which were possible would have been right if they had been done; and not only which among the voluntary actions which actually will be done in the future, will be right, but also which among those which will be possible, would be right, if they were to be done. And in doing this, it does, of course, give us a criterion, or test, or standard, by means of which we could, theoretically at least, discover with regard to absolutely every voluntary action, whichever either has been or will be either actual or possible, whether it was or will be right or not. If we want to discover with regard to a voluntary action which was actually done or was possible in the past, whether it was right or would have been right, we have only to ask: Could the agent, on the occasion in question, have done anything else instead, which would have produced more pleasure? If he could, then the action in question was or would have been wrong; if he could not, then it was or would have been right. And similarly, if we want to
