Imperfect, however, as is our power of judging others, it is a power we are all obliged to exercise. It is impossible to exclude the considerations of moral guilt and of palliating or aggravating circumstances from the penal code, and from the administration of justice, though it cannot be too clearly maintained that the criminal code is not coextensive with the moral code, and that many things which are profoundly immoral lie beyond its scope. On the whole it should be as much as possible confined to acts by which men directly injure others. In the case of adult men, private vices, vices by which no one is directly affected, except by his own free will, and in which the elements of force or fraud are not present, should not be brought within its range. This ideal, it is true, cannot be fully attained. The legislator must take into account the strong pressure of public opinion. It is sometimes true that a penal law may arrest, restrict, or prevent the revival of some private vice without producing any countervailing evil. But the presumption is against all laws which punish the voluntary acts of adult men when those acts injure no one except themselves. The social censure, or the judgment of opinion, rightly extends much further, though it is often based on very imperfect knowledge or realisation. It is probable that, on the whole, opinion judges too severely the crimes of passion and of drink, as well as those which spring from the pressure of great poverty and are accompanied by great ignorance. The causes of domestic anarchy are usually of such an intimate nature and involve so many unknown or imperfectly realised elements of aggravation or palliation that in most cases the less men attempt to judge them the better. On the other hand, public opinion is usually far too lenient in judging crimes of ambition, cupidity, envy, malevolence, and callous selfishness; the crimes of ill-gotten and ill-used wealth, especially in the many cases in which those crimes are unpunished by law.