26. _But before all, thy soul to its faithful duty, Invoke these Gods with fervour, they whose aid, Thy work begun, alone can terminate._ All the cults established upon the face of the earth have made a religious duty of prayer. This alone would prove, if it were necessary, what I have advanced concerning the theosophical dogma of the volitive liberty of man; for if man were not free in his actions, and if an irresistible fatality led him on to misfortune and to crime, what use would be invoking the gods, imploring their assistance, begging them to turn aside from him the evils which must inevitably overwhelm him? If, as Epicurus taught, an impenetrable barrier separated gods and men; if these gods, absorbed in their beatitude and their impassive immortality, were such strangers to the evils of humanity that they neither troubled to alleviate them nor to prevent them, for what purpose then the incense burning at the foot of their altars?[558] It was, he said, on account of the excellence of their nature that he honoured them thus, and not from any motive of hope or fear, not expecting any good from them and not dreading any evil.[559] What miserable sophism! How could Epicurus say such a thing before having explained clearly and without amphibology, what the origin of good and evil is, so as to prove that the gods indeed do not cooperate either for the augmentation of the one, or the diminution of the other? But Epicurus had never dreamed of giving this explanation. However little he might have considered it, he would have seen that in whatever fashion he had given it, it would have overthrown the doctrine of atoms; for a sole principle, whatever it may be, cannot produce at the same time good and evil. Nevertheless, if he has not explained this origin, and if he has not shown in a peremptory way that we are in a sphere where absolute evil reigns, and that consequently we can have no sort of communication with that wherein good resides, it will remain always evident that if we are not in such a sphere, and if we possess a portion of good, this good must come to us from the sphere wherein absolute good has its source. Now, this sphere is precisely that in which Epicurus places the gods.[560] But, perhaps, a defender of Epicurus will say, the good that we possess comes to us only once from the divine sphere and thenceforth it comes to us no more. This is contrary to the most intimate and most general notion that we have of the Divinity, to that of its immutability upon which Epicurus himself leans most, and from which it results that the gods could never be what they have been, nor do what they have done.