Years later, in one of the elaborations of the second _Scienza Nuova_ made by Vico, we again meet with the idea and the phrase of a practical aspect of this science, in the title of a special concluding paragraph which he proposed to add to his work. It begins thus: "The whole of this work has now been thought out as a mere contemplative science dealing with the common character of nations: for this reason it may seem to offer no assistance to human prudence in order either to prevent or to delay the entire ruin of nations on the path of decadence, and thus to lack the practical side which every science must have whose subject-matter is dependent upon the human will, all such sciences being called practical." Now in what could such a practical side consist? "This practical application can easily be found from the contemplation itself of the course of the history of nations: which the wise men (statesmen) and princes of states observing, could by means of good ordinances, laws and examples recall peoples to their ἀκμή or state of perfection." In other words: a man warned is half saved. Contemplation is the only principle of conduct which the New Science can supply. The other half of salvation depends not on the person warning, namely thought, but upon the person warned, upon action. It does not occur to Vico to try to determine the "ordinances, laws and examples" whose adoption would be of value in this or that crisis or situation. This would not be a philosopher's task, as in fact he himself clearly recognises next moment, when he says: "The only practical principles we philosophers can supply are ones which can be confined to the academic sphere." It would certainly be rash to claim precise knowledge of Vico's reasons for omitting this note on practical principles in the final manuscript of the last edition of the _Scienza Nuova,_ just as he had omitted in the second work of that title the assertions on the subject which had appeared in the first. But we may at least venture to guess that the principal reason was the obvious emptiness of this passage, promising as it did a practical application which it failed to provide, and finally confessing that such a practical application was either impossible or already included in the theory itself. CHAPTER X PROVIDENCE