There is no need to discuss the morality of actions in which plaintiff and judge are one and the same person. If this Italian thirst for vengeance is to be palliated at all, it must be by proving the existence of a corresponding national virtue, namely gratitude. The same force of imagination which retains and magnifies wrong once suffered, might be expected also to keep alive the memory of kindness received.[998] It is not possible, however, to prove this with regard to the nation as a whole, though traces of it may be seen in the Italian character of to-day. The gratitude shown by the inferior classes for kind treatment, and the good memory of the upper for politeness in social life, are instances of this. This connexion between the imagination and the moral qualities of the Italian repeats itself continually. If, nevertheless, we find more cold calculation in cases where the Northerner rather follows his impulses, the reason is that individual development in Italy was not only more marked and earlier in point of time, but also far more frequent. Where this is the case in other countries, the results are also analogous. We find, for example, that the early emancipation of the young from domestic and paternal authority is common to North America with Italy. Later on, in the more generous natures, a tie of freer affection grows up between parents and children. It is in fact a matter of extreme difficulty to judge fairly of other nations in the sphere of character and feeling. In these respects a people may be developed highly, and yet in a manner so strange that a foreigner is utterly unable to understand it. Perhaps all the nations of the West are in this point equally favoured. * * * * * But where the imagination has exercised the most powerful and despotic influence on morals is in the illicit intercourse of the two sexes. It is well known that prostitution was freely practised in the Middle Ages, before the appearance of syphilis. A discussion, however, on these questions does not belong to our present work. What seems characteristic of Italy at this time, is that here marriage and its rights were more often and more deliberately trampled under foot than anywhere else. The girls of the higher classes were carefully secluded, and of them we do not speak. All passion was directed to the married women.