I am not sure if it is really necessary, before closing this chapter, to follow in the wake of many others and broach the problem of the preexistence of the future, which includes those of fatality, of free will, of time and of space, that is to say, all the points that touch the essential sources of the great mystery of the universe. The theologians and the metaphysicians have tackled these problems from every side without giving us the least hope of solving them. Among those which life sets us, there is none to which our brain seems more definitely and strictly closed; and they remain, if not as unimaginable, at least as incomprehensible as on the day when they were first perceived.

What corresponds, outside us, with what we call time and space?

We know nothing about it; and Kant, speaking in the name of the "apriorists," who hold that the idea of time is innate in us, does not teach us much when he tells us that time, like space, is an a priori form of our sensibility, that is to say, an intuition preceding experience, even as Guyau, among the "empiricists," who consider that this idea is acquired only by experience, does not enlighten us any more by declaring that this same time is the abstract formula of the changes in the universe. Whether space, as Leibnitz maintains, be an order of coexistence and time an order of sequences, whether it be by space that we succeed in representing time or whether time be an essential form of any representation, whether time be the father of space or space the father of time, one thing is certain, which is that the efforts of the Kantian or neo-Kantian apriorists and of the pure empiricists and the idealistic empiricists all end in the same darkness; that all the philosophers who have grappled with the formidable dual problem, among whom one may mention indiscriminately the names of the greatest thinkers of yesterday and to-day--Herbert Spencer, Helmholtz, Renouvier, James Sully, Stumpf, James Ward, William James, Stuart Mill, Ribot, Fouillee, Guyau, Bain, Lechalas, Balmes, Dunan and endless others--have been unable to tame it; and that, however much their theories may contradict one another, they are all equally defensible and alike struggle vainly in the darkness against shadows that are not of our world.

To catch a glimpse of this strange problem of the preexistence of the future, as it shows itself to each of us, let us essay more humbly to translate it into tangible images, to place it as it were upon the stage. I am writing these lines sitting on a stone, in the shade of some tall beeches that overlook a little Norman village. It is one of those lovely summer days when the sweetness of life is almost visible in the azure vase of earth and sky. In the distance stretches the immense, fertile valley of the Seine, with its green meadows planted with restful trees, between which the river flows like a long path of gladness leading to the misty hills of the estuary. I am looking down on the village-square, with its ring of young lime-trees. A procession leaves the church and, amid prayers and chanting, they carry the statue of the Virgin around the sacred pile. I am conscious of all the details of the ceremony: the sly old cure perfunctorily bearing a small reliquary; four choirmen opening their mouths to bawl forth vacantly the Latin words which convey nothing to them; two mischievous serving-boys in frayed cassocks; a score of little girls, young girls and old maids in white, all starched and flounced, followed by six or seven village notables in baggy frockcoats. The pageant disappears behind the trees, comes into sight again at the bend of the road and hurries back into the church. The clock in the steeple strikes five, as though to ring down the curtain and mark in the infinite history of events which none will recollect the conclusion of a spectacle which never again, until the end of the world and of the universe of worlds, will be just what it was during those seconds when it beguiled my wandering eyes.

For in vain will they repeat the procession next year and every year after: never again will it be the same. Not only will several of the actors probably have disappeared, but all those who resume their old places in the ranks will have undergone the thousand little visible and invisible changes wrought by the passing days and weeks. In a word, this insignificant moment is unique, irrecoverable, inimitable, as are all the moments in the existence of all things; and this little picture, enduring for a few seconds suspended in boundless duration, has lapsed into eternity, where henceforth it will remain in its entirety to the end of time, so much so that, if a man could one day recapture in the past, among what some one has called the "astral negatives," the image of what it was, he would find it intact, unchanged, ineffaceable and undeniable.

It is not difficult for us to conceive that one can thus go back and seeagain the astral negative of an event that is no more; and retrospective clairvoyance appears to us a wonderful but not an impossible thing. It astonishes but does not stagger our reason.

But, when it becomes a question of discovering the same picture in the future, the boldest imagination flounders at the first step. How are we to admit that there exists somewhere a representation or reproduction of that which has not yet existed?