Thus, for instance, to quote only one example, when the hour of sleep has struck for men, you have retired to your hole, surrounded by the darkness, the silence and the formidable solitude of the night.  All is sleep in the master’s house.  You feel yourself very small and weak in the presence of the mystery.  You know that the gloom is peopled with foes who hover and lie in wait.  You suspect the trees, the passing wind and the moonbeams.  You would like to hide, to suppress yourself by holding your breath.  But still the watch must be kept; you must, at the least sound, issue from your retreat, face the invisible and bluntly disturb the imposing silence of the earth, at the risk of bringing down the whispering evil or crime upon yourself alone.  Whoever the enemy be, even if he be man, that is to say, the very brother of the god whom it is your business to defend, you must attack him blindly, fly at his throat, fasten your perhaps sacrilegious teeth into human flesh, disregard the spell of a hand and voice similar to those of your master, never be silent, never attempt to escape, never allow yourself to be tempted or bribed and, lost in the night without help, prolong the heroic alarm to your last breath.

There is the great ancestral duty, the essential duty, stronger than death, which not even man’s will and anger are able to check.  All our humble history, linked with that of the dog in our first struggles against every breathing thing, tends to prevent his forgetting it.  And when, in our safer dwelling-places of to-day, we happen to punish him for his untimely zeal, he throws us a glance of astonished reproach, as though to point out to us that we are in the wrong and that, if we lose sight of the main clause in the treaty of alliance which he made with us at the time when we lived in caves, forests and fens, he continues faithful to it in spite of us and remains nearer to the eternal truth of life, which is full of snares and hostile forces.

But how much care and study are needed to succeed in fulfilling this duty!  And how complicated it has become since the days of the silent caverns and the great deserted lakes!  It was all so simple, then, so easy and so clear.  The lonely hollow opened upon the side of the hill, and all that approached, all that moved on the horizon of the plains or woods, was the unmistakable enemy....  But to-day you can no longer tell....  You have to acquaint yourself with a civilization of which you disapprove, to appear to understand a thousand incomprehensible things....  Thus, it seems evident that henceforth the whole world no longer belongs to the master, that his property conforms to unintelligible limits....  It becomes necessary, therefore, first of all to know exactly where the sacred domain begins and ends.  Whom are you to suffer, whom to stop?...  There is the road by which every one, even the poor, has the right to pass.  Why?  You do not know; it is a fact which you deplore, but which you are bound to accept.  Fortunately, on the other hand, here is the fair path which none may tread.  This path is faithful to the sound traditions; it is not to be lost sight of; for by it enter into your daily existence the difficult problems of life.